SSC GD flashcards
462 cards from 64 fact-checked topic notes · English
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All cards by topic
Analogies — General Intelligence and Reasoning · 8 cards
- Relationship identification is primary
- Every analogy has a specific logical, semantic, or mathematical relationship between the first two terms. Your first job is always to identify what connects them before looking at options.
- Same relationship must apply exactly
- The correct answer maintains the identical relationship structure. If A is the opposite of B, then C must be the opposite of D — not just loosely related.
- Word analogies test meaning and context
- Common relationships include synonyms, antonyms, part-to-whole, tool-to-worker, cause-and-effect, gender pairs, young-to-adult, item-to-category, and degree of intensity.
- Number analogies follow arithmetic or algebraic patterns
- Look for operations like addition, subtraction, multiplication, division, squares, cubes, prime numbers, multiples, or positional patterns in digits.
- Figural analogies involve visual transformations
- Common patterns include rotation (clockwise/anticlockwise), reflection (horizontal/vertical mirror), increase/decrease in elements, shading changes, and positional shifts of components.
- Direction of relationship matters
- In "Doctor : Hospital", doctor works in hospital. But "Hospital : Doctor" would mean hospital employs doctor — subtly different. Always maintain the same directional logic.
- Eliminate impossible options first
- Often 2–3 options can be eliminated immediately because they don't even match the category (e.g., if the stem is animal-related, options about buildings are unlikely).
- Practice builds pattern recognition speed
- The more analogies you solve, the faster you'll recognize relationship types. Aim to build a mental checklist of 15–20 common relationships.
Similarities and Differences — General Intelligence and Reasoning · 6 cards
- Odd One Out principle
- In a set of four or five items, three or four share a common property while one does not. Your job is to identify the misfit.
- Similarity grouping
- Sometimes you must identify which items belong together based on a shared trait — meaning, function, category, or mathematical property.
- Category-based logic
- Items can be grouped by semantic meaning (all are fruits), grammatical type (all are verbs), numerical properties (all are prime numbers), or positional patterns (all are vowels).
- Verbal vs. non-verbal formats
- Verbal questions use words and require vocabulary knowledge; non-verbal use letters, numbers, or figures and test logical or arithmetic reasoning.
- Elimination technique
- Compare each item against the others. The moment three items share a trait that the fourth lacks, you've found your answer.
- Multiple valid groupings
- Occasionally items can be grouped in more than one way, but the exam always has one intended pattern that three or four items follow clearly.
Spatial Visualization — General Intelligence and Reasoning · 8 cards
- Mental Rotation
- The ability to rotate a figure in your mind through 90°, 180°, or 270° angles, either clockwise or anticlockwise, and predict its new orientation.
- Mirror Images and Reflections
- Understanding how a figure appears when reflected across a vertical or horizontal line—left becomes right, top remains top in vertical reflection; top becomes bottom in horizontal reflection.
- Paper Folding and Punching
- Visualizing how holes punched in folded paper will appear when the paper is completely unfolded—symmetry and fold lines determine hole positions.
- Cube and Dice Problems
- Mentally assembling or disassembling cubes from flat patterns (nets) or determining opposite faces, adjacent faces, and rotational views of a cube.
- Embedded Figures
- Identifying a simpler figure hidden within a complex figure—requires isolating the target shape from distracting lines and patterns.
- Figure Completion
- Predicting which piece completes a partially shown figure, often involving matching contours, angles, and symmetry.
- Pattern Construction
- Visualizing how smaller pieces fit together to form a larger shape or pattern, testing spatial assembly skills.
- 3-D to 2-D Projection
- Understanding how a three-dimensional object appears from different viewpoints—top view, side view, or front view.
Spatial Orientation — General Intelligence and Reasoning · 8 cards
- Rotation
- A figure turns around a fixed point (usually its center) by a specific angle. Common exam angles are 90°, 180°, and 270° in either clockwise (CW) or anticlockwise (ACW) direction.
- Clockwise vs Anticlockwise
- Clockwise follows the direction of clock hands; anticlockwise is the opposite. A 90° CW rotation is equivalent to a 270° ACW rotation.
- Reference points
- Identify distinctive features on the figure—sharp corners, arrows, protruding parts, letters, or numbers—that help you track orientation change clearly.
- Mirror image vs rotation
- A mirror image (reflection) flips a figure across an axis (horizontal or vertical). This is fundamentally different from rotation; rotated figures maintain the same "handedness," while mirrored figures reverse it.
- Composite transformations
- Some questions combine rotation and reflection (e.g., "rotate 90° CW then reflect vertically"). Handle these step-by-step in the order given.
- Asymmetric figures are easier to track
- Letters like F, L, P, or arrows change distinctly with rotation. Symmetric figures (circles, squares without markings) give fewer visual clues.
- Standard orientations
- Get comfortable with four cardinal positions—original (0°), 90° CW, 180°, and 270° CW (or 90° ACW)—for any figure. Visualize these as clock positions: 12 o'clock, 3 o'clock, 6 o'clock, 9 o'clock.
- Movement vs rotation
- Some questions describe linear movement (up, down, left, right). Track the figure's new position but check if its internal orientation also changes—pure translation keeps orientation unchanged unless rotation is also specified.
Visual Memory — General Intelligence and Reasoning · 7 cards
- Encoding phase
- The brief window when you first view the figure. Your goal is to capture maximum detail in minimum time without trying to memorise everything perfectly.
- Storage phase
- The short-term retention interval during which you hold the visual data in mind.
- Retrieval phase
- When you compare your mental image against 4–5 answer options and pick the exact match or recall the asked detail. Accuracy in this phase depends on how systematically you encoded the figure.
- Chunking strategy
- Instead of remembering every pixel, break the figure into 2–4 meaningful chunks (e.g., top shape + bottom shape + orientation + shading). This exploits how human short-term memory works best with grouped information.
- Anchor points
- Identify distinctive features such as unique corners, arrows, embedded small shapes, or asymmetries. These serve as mental anchors that help you reject wrong options quickly.
- Pattern vs detail trade-off
- In complex figures, memorising the overall pattern (gestalt) is often more reliable than fixating on minute details. However, exam questions may hinge on a single small feature, so balance is key.
- Distractor design
- Wrong options in Visual Memory questions are crafted to be highly similar to the original—typically differing in one orientation, one internal line, one shading, or one spatial position. Recognising common distractor patterns speeds up elimination.
Discrimination — General Intelligence and Reasoning · 8 cards
- Discrimination vs Classification
- Discrimination finds differences between similar items; classification groups similar items and finds the odd one. Both test visual reasoning but require opposite mental approaches.
- Systematic scanning technique
- Examine figures from left-to-right, top-to-bottom. Check one feature type at a time (shape, then size, then shading) rather than trying to see everything at once.
- Common difference categories
- Size variations (larger/smaller elements), orientation changes (rotated/flipped parts), element count (extra/missing components), shading patterns (filled/unfilled sections), position shifts (elements moved slightly).
- Mirror vs rotation confusion
- A horizontally flipped figure looks different from a rotated one. Train your eye to distinguish flips (mirror images) from turns (rotations).
- Minute detail focus
- The difference might be as small as one dot, a single line direction change, or a tiny gap. The exam deliberately makes figures nearly identical to test concentration.
- Embedded figures trap
- Sometimes the discrimination involves spotting whether a small shape is embedded inside a larger figure or sits adjacent to it—position matters.
- Pattern continuation errors
- In pattern-based discrimination, check if elements follow the same sequence rule or if one breaks the pattern subtly.
- Time management balance
- Spend 30–40 seconds maximum per question. If differences aren't apparent in that time, mark for review and move forward.
Observation — General Intelligence and Reasoning · 6 cards
- Systematic Scanning
- Adopt a consistent pattern to examine images—top to bottom, left to right, or clockwise. Random viewing leads to missed details. Train your eyes to follow the same path every time so nothing escapes notice.
- Categorization of Elements
- Group details into categories—colors, shapes, numbers, positions, sizes, and orientations. This mental filing system helps recall specific information when questions ask "How many red circles?" or "What was in the top-right corner?"
- Active Observation vs. Passive Viewing
- Passive viewing means simply looking; active observation means consciously noting each element. Engage your mind by mentally narrating what you see: "Three blue triangles on the left, one inverted."
- Time Management Under Pressure
- Don't waste initial seconds hesitating. Start scanning immediately and maintain steady focus throughout the exposure period.
- Question Anticipation
- Before the image appears, quickly glance at the question types if shown. If questions ask about colors, focus on colors; if about positions, track spatial relationships. This targeted approach maximizes efficiency.
- Elimination and Verification
- When answering, eliminate obviously wrong options first. If unsure between two choices, try to recall the specific detail that would confirm one over the other rather than guessing blindly.
Relationship Concepts — General Intelligence and Reasoning · 8 cards
- Direct relations vs. indirect relations
- Direct relations are parent-child or sibling pairs. Indirect relations require two or more steps (e.g., father's brother = uncle, sister's son = nephew).
- Gender matters at every step
- Always note whether a person is male or female. Use symbols (△ for male, ○ for female) in your rough work.
- Generation levels
- Keep track of which generation each person belongs to — grandparents at top, parents in middle, children/self at bottom, grandchildren below. Never place someone on the wrong level.
- Only child / only son / only daughter
- These terms eliminate siblings and simplify the tree. "Only son of my father" said by a male means himself — he has no brothers (he may still have sisters); said by a female it means her only brother.
- Pointing questions
- Treat the speaker as the reference point. Decode the introduced person's relation to the speaker step-by-step. The phrase "pointing to a photograph" or "introducing a man" signals this pattern.
- Maternal vs. paternal
- Uncle can be father's brother (paternal) or mother's brother (maternal). Aunt can be father's sister or mother's sister. The question often specifies which side when the distinction matters.
- In-laws and spouses
- Husband/wife connects two families. Brother-in-law can be sister's husband or wife's brother. Always trace the marriage link carefully.
- Generational shortcut
- Moving up one generation means parent/uncle/aunt. Moving down one generation means son/daughter/nephew/niece. Two generations up means grandparent.
Arithmetical Reasoning — General Intelligence and Reasoning · 8 cards
- Problem = Story + Arithmetic
- Every question wraps a calculation inside a scenario. Identify the unknown, extract given numbers, and set up the operation.
- Keywords signal operations
- "Total" or "altogether" suggests addition; "difference" or "how many more" suggests subtraction; "each" or "per" often means multiplication or division.
- Age problems
- Relate present ages, past ages, or future ages using equations. Remember: if A is x years older than B now, A was also x years older y years ago.
- Distribution and sharing
- When items are distributed equally, use division. When distribution is unequal, track each share separately and sum to check totals.
- Counting and arrangements
- Problems may ask how many handshakes, matches, or steps occur. Use formulas (e.g., n people shaking hands once each = n(n−1)/2 handshakes) or systematic counting.
- Averages and totals
- If the average of n items is A, the total is n × A. Use this to find missing values when some quantities are known.
- Logical consistency
- Always verify your answer makes sense in context (e.g., number of people cannot be negative or fractional unless the problem allows it).
- Unit consistency
- Ensure all quantities use the same unit (rupees, kilograms, hours) before computing. Convert if necessary.
Figural Classification — General Intelligence and Reasoning · 8 cards
- Odd One Out
- Three or four figures share a common property; one figure lacks it or has a different property. Your job is to identify the exception.
- Grouping Similar Figures
- Figures are divided into two sets based on a shared attribute (e.g. all circles in one group, all polygons in another).
- Visual Properties
- Check shape (circle, triangle, square), number of sides or elements, presence of curves versus straight lines, and internal divisions.
- Shading and Patterns
- Look for filled vs. unfilled, hatched vs. solid, or dotted vs. lined sections. One figure may differ only in shading style.
- Symmetry and Orientation
- Figures may be symmetric or asymmetric, rotated or mirrored. The odd figure might be the only one lacking line symmetry or rotated differently.
- Element Count
- Count dots, lines, arrows, internal shapes, or any repeating components. The odd figure often has one more or one fewer element.
- Combination Features
- Sometimes two or more features combine (e.g. "all figures with three sides AND shading"). Train yourself to check multiple dimensions simultaneously.
- Elimination Strategy
- If one property doesn't reveal the answer, move to the next—shape, then size, then shading, then rotation. Systematic scanning prevents confusion.
Arithmetic Number Series — General Intelligence and Reasoning · 8 cards
- Constant Difference
- Each term increases or decreases by the same fixed number. Example: 3, 7, 11, 15 (add 4 each time).
- Constant Ratio
- Each term is multiplied or divided by the same number. Example: 2, 6, 18, 54 (multiply by 3).
- Increasing or Decreasing Difference
- The gap between terms itself grows or shrinks. Example: 2, 3, 5, 8, 12 (differences are 1, 2, 3, 4).
- Perfect Squares and Cubes
- Series based on n², n³, or (n² ± k). Example: 1, 4, 9, 16, 25 (squares of 1, 2, 3, 4, 5).
- Prime Number Series
- Sequence of consecutive or selected prime numbers. Example: 2, 3, 5, 7, 11.
- Alternating Operations
- Odd and even positions follow different rules. Example: 2, 5, 4, 10, 8, 20 (even positions multiply by 2, odd positions also multiply by 2).
- Two-Level Patterns
- The difference between terms itself forms a recognizable series.
- Mixed Operations
- Combines addition/subtraction with multiplication/division. Example: 3, 5, 10, 12, 24 (alternately add 2 and multiply by 2).
Non-Verbal Series — General Intelligence and Reasoning · 6 cards
- Sequential Logic
- Every non-verbal series follows a rule that applies consistently from one figure to the next. Your task is reverse-engineering this rule from the given examples.
- Multiple Element Tracking
- Figures often contain several independent elements (outer shape, inner shape, dots, lines) that each follow their own progression pattern simultaneously.
- Direction of Change
- Changes can be progressive (each step adds something), cyclical (pattern repeats after N steps), or alternating (odd/even positions differ). Identifying the change pattern is half the battle.
- Common Transformations
- The most frequent operations are rotation (90°, 180° clockwise/anticlockwise), reflection (horizontal/vertical flip), addition/removal of elements, position shifts (clockwise/anticlockwise movement around a frame), and shading alternations.
- Elimination Strategy
- When stuck between two options, work backwards — imagine each option as the next figure and check if it maintains the established rule consistently across all previous transitions.
- Position Consistency
- When figures have multiple parts, track each part's position independently. A common error is noticing that "something moved" without mapping exactly which element went where.
Coding and Decoding — General Intelligence and Reasoning · 6 cards
- Letter Shifting
- Each letter in a word moves forward or backward by a fixed number of positions in the alphabet. For example, A+2 = C, B+2 = D. Common shifts are ±1, ±2, ±3, and ±5 positions.
- Reverse Coding
- The entire word or its letters are written in reverse order. Sometimes combined with letter shifting for added complexity (reverse first, then shift each letter).
- Positional Value Coding
- Letters are replaced by their numeric position in the alphabet (A=1, B=2, ... Z=26) or the reverse position (A=26, B=25, etc.). These numbers may then be added, multiplied, or manipulated further.
- Mixed Alphabet Coding
- Alternate letters follow different rules. For instance, letters at odd positions shift forward by 2, while letters at even positions shift backward by 1.
- Number and Symbol Substitution
- Each letter is assigned a specific digit or symbol according to a key provided or implied. You apply the same key to decode or encode the target word.
- Word-to-Word Analogy Coding
- A complete word is coded as another unrelated word based on a rule like "number of letters + 2" or "first and last letters swapped."
Direction and Distance — General Intelligence and Reasoning · 8 cards
- Cardinal directions
- North (N), South (S), East (E), West (W) are the four main compass points. North is always at the top of your mental map, South at bottom, East to the right, West to the left.
- Turns and rotations
- A right turn from North leads to East; a left turn from North leads to West. After any turn, your new facing direction becomes the reference for the next instruction.
- Opposite directions
- North ↔ South are opposites; East ↔ West are opposites. Moving North then South by the same distance brings you back to the starting latitude.
- Net displacement
- If someone moves North 5 km then South 3 km, the net northward displacement is 5 − 3 = 2 km. Similarly, East and West movements cancel partially.
- Pythagorean theorem for distance
- When final position involves both North–South and East–West displacement, the straight-line distance is √(NS² + EW²), where NS is net North–South distance and EW is net East–West distance.
- Reference point
- Always track position relative to the starting point or a specified reference. The question may ask for distance from start, direction from start, or final bearing.
- 45° diagonals
- North-East, North-West, South-East, South-West are intermediate directions at 45° angles. Sometimes questions involve these diagonal movements.
- Diagram strategy
- Sketch a quick cross (+ shape) with N, S, E, W labeled. Plot each movement step-by-step to avoid confusion, especially in multi-step problems.
Order and Ranking — General Intelligence and Reasoning · 6 cards
- Linear arrangement
- People, objects, or students are arranged in a single line (horizontal row or vertical column). The arrangement has two clear ends—top/bottom or left/right.
- Position from one end determines position from other
- If you know someone's rank from the top and the total number of people, you can find their rank from bottom, and vice versa. The relationship is algebraic and exact.
- Overlap concept
- When a problem states "X is 5th from top and Y is 8th from bottom, and there are 3 people between X and Y," the total is 5+8+3 = 16 only when X is above Y (no overlap). You must account for whether X and Y are counted and whether positions overlap.
- Double-counting trap
- The most common error is counting the same person twice when adding ranks from both ends. The formula Total = Rank from top + Rank from bottom – 1 exists because the person in question appears in both counts.
- Between vs. Including
- "3 people between A and B" means exactly 3 persons stand in the gap, so A and B are NOT adjacent. "Including A and B" means count them; "between" means exclude them.
- Symmetry in ranks
- In an arrangement of n people, the middle position (when n is odd) is (n+1)/2 from either end. For even n, there are two middle positions at n/2 and (n/2)+1.
Venn Diagrams — General Intelligence and Reasoning · 8 cards
- Set representation
- A set is any collection of distinct objects or people. In Venn Diagrams, each circle represents one complete set or category.
- Disjoint sets
- Two or more sets with no common members are shown as separate, non-touching circles. Example: Dogs, Chairs, Books have nothing in common, so three separate circles.
- Overlapping sets
- When two sets share some common members but each also has exclusive members, their circles partially overlap. Example: Students and Athletes—some students are athletes, some athletes aren't students, some students don't play sports.
- Subset relationship
- When every member of Set A is also a member of Set B, draw circle A completely inside circle B. Example: Roses are a subset of Flowers; every rose is a flower, but not every flower is a rose.
- Three-set relationships
- With three categories, you must determine which pairs overlap and which remain separate. The intersection region where all three circles meet represents items belonging to all three categories simultaneously.
- Region counting
- In number-based Venn problems, each region (intersection, exclusive area, overlap of two) contains a number representing how many items belong to exactly that combination of sets.
- Universal set
- Sometimes a rectangle surrounds all circles, representing the complete universe of items being discussed. Items outside all circles but inside the rectangle belong to the universal set but none of the specific categories.
- Logical thinking over memorization
- Rather than memorizing diagram patterns, understand the real-world relationship. Ask yourself: "Can one item belong to both categories? Must it? Can it belong to neither?"
Syllogism — General Intelligence and Reasoning · 8 cards
- Categorical statements
- Syllogism uses four types—Universal Affirmative (All A are B), Universal Negative (No A are B), Particular Affirmative (Some A are B), and Particular Negative (Some A are not B). Each has a distinct logical meaning.
- Venn diagram method
- Represent each statement as overlapping or separate circles. "All A are B" means circle A lies entirely inside B. "No A are B" means circles A and B do not touch. "Some A are B" means circles overlap partially. This visual method eliminates guesswork.
- Complementary pairs
- "All" and "Some not" are complements; "No" and "Some" are complements. If "All dogs are animals" is false, then "Some dogs are not animals" must be true. Recognizing these pairs helps in either-or conclusions.
- Follow from statements, not reality
- Even if a statement seems illogical ("All books are trees"), treat it as true for that problem. The exam tests deductive logic, not general knowledge.
- "Some" means at least one
- In logic, "Some A are B" means one or more A belong to B. It does not mean "only a few" or "not all." This precise interpretation is crucial.
- Either-or cases
- When neither conclusion follows on its own but at least one of them must be true, the answer is "Either conclusion I or II follows." This happens with complementary statements like "Some A are B" and "Some A are not B" when the statements make neither of them certain.
- Possibility vs. certainty
- A conclusion follows only if it is definitely true in all valid Venn arrangements of the statements. If a conclusion might be true but could also be false, it does not follow.
- Middle term distribution
- In classical logic, the middle term (the category common to both statements) must be "distributed" (refer to all members) at least once. For SSC GD, you don't need formal rules—Venn diagrams handle this automatically—but understanding helps avoid errors.
History — General Knowledge and General Awareness · 8 cards
- Ancient India (up to ~1200 CE)
- Covers Indus Valley Civilization, Vedic period, Maurya and Gupta empires, and regional kingdoms. Focus on political structures, religions (Buddhism, Jainism), art, architecture and major rulers like Ashoka and Chandragupta.
- Medieval India (~1200–1757)
- Dominated by Delhi Sultanate (five dynasties) and Mughal Empire (Babur to Aurangzeb). Know administrative systems (Iqta, Mansabdari), architecture (Qutub Minar, Taj Mahal), regional powers (Vijayanagara, Bahmani) and Bhakti-Sufi movements.
- Modern India (1757–1947)
- British expansion from Battle of Plassey to colonial rule. Key areas: economic exploitation, social reforms (Sati abolition, education), revolts (1857), and the rise of nationalism through Congress, revolutionary movements and mass struggles.
- Freedom Struggle
- Chronological progression from early resistance (1857 Revolt) through moderate-extremist phases, Gandhian mass movements (Non-Cooperation, Civil Disobedience, Quit India), revolutionary activities and final independence in 1947. Link leaders to their specific contributions.
- Dynasties and timelines
- Maintain a mental timeline of major dynasties in sequence. Know founder, capital, peak ruler and end date for each major empire.
- Battles and treaties
- Wars often mark turning points—Battles of Plassey (1757), Buxar (1764), Panipat (three major ones: 1526, 1556, 1761), and their outcomes shape subsequent political control.
- Social and religious reform
- Medieval Bhakti-Sufi saints (Kabir, Nanak, Tukaram) and modern reformers (Raja Ram Mohan Roy, Dayananda Saraswati, Vivekananda) are important. Know their movements and key teachings.
- Art and architecture
- Each period has signature monuments. Link them correctly: Sanchi Stupa (Maurya), Ajanta-Ellora (Gupta-Chalukya), Qutub Minar (Qutb-ud-din Aibak), Taj Mahal (Shah Jahan), Victoria Memorial (British).
Physics — General Knowledge and General Awareness · 8 cards
- Motion and Force
- Displacement, velocity and acceleration describe how objects move. Newton's first law states inertia (objects resist change in motion). Newton's second law links force, mass and acceleration: F = ma. Newton's third law says every action has an equal and opposite reaction.
- Energy and Work
- Work is force times displacement in the direction of force. Kinetic energy is energy of motion (½mv²). Potential energy is stored energy due to position or state. Energy cannot be created or destroyed, only transformed (conservation of energy).
- Pressure and Buoyancy
- Pressure is force per unit area. Atmospheric pressure at sea level is about 1.01 × 10⁵ Pa. Archimedes' principle explains buoyancy: upthrust equals the weight of fluid displaced. Density is mass per unit volume.
- Electricity Basics
- Current (I) is the flow of charge, measured in amperes. Voltage (V) is electrical potential difference, measured in volts. Resistance (R) opposes current flow, measured in ohms. Ohm's law: V = IR.
- Circuits and Power
- In series circuits, current is the same everywhere; resistances add. In parallel circuits, voltage is the same across branches; reciprocal resistances add. Electrical power P = VI = I²R = V²/R, measured in watts.
- Optics — Reflection
- Law of reflection: angle of incidence equals angle of reflection. Plane mirrors form virtual, upright, same-size images. Concave mirrors converge light and can form real or virtual images. Convex mirrors diverge light and always form smaller virtual images.
- Optics — Refraction
- Light bends when entering a different medium. Convex lenses converge light; used in magnifying glasses and to correct farsightedness. Concave lenses diverge light; used to correct nearsightedness. Lens formula: 1/f = 1/v – 1/u.
- Heat and Temperature
- Temperature measures hotness; thermometers use expansion of liquids or gases. Heat flows from hot to cold. Conduction, convection and radiation are modes of heat transfer. Specific heat capacity is heat needed to raise 1 kg by 1°C.
Geography — General Knowledge and General Awareness · 8 cards
- India's Location
- India lies entirely in the Northern and Eastern Hemispheres between latitudes 8°4'N to 37°6'N and longitudes 68°7'E to 97°25'E. The Tropic of Cancer (23°30'N) passes through eight Indian states.
- Physiographic Divisions
- India has six major landform regions — the Himalayas in the north, the Northern Plains formed by Indus-Ganga-Brahmaputra systems, the Peninsular Plateau (oldest landmass), the Indian Desert, the Coastal Plains (Western and Eastern), and the Island Groups (Andaman-Nicobar and Lakshadweep).
- Drainage Systems
- India has two main drainage patterns — Himalayan rivers (perennial, snow-fed, longer courses like Ganga, Brahmaputra, Indus) and Peninsular rivers (seasonal, rain-fed, shorter courses like Godavari, Krishna, Kaveri). Most Himalayan rivers flow west-to-east except Indus;
- Climate Zones
- India experiences tropical monsoon climate with four seasons — winter (December–February), summer (March–May), southwest monsoon (June–September), and retreating monsoon (October–November). The monsoon contributes about 75% of annual rainfall.
- Political Boundaries
- India shares land borders with seven countries totalling 15,106 km. The longest border is with Bangladesh (4,096 km), followed by China (3,488 km) and Pakistan (3,323 km). India has 28 states and 8 union territories as of 2024.
- Neighbouring Capitals
- Pakistan (Islamabad), Afghanistan (Kabul), China (Beijing), Nepal (Kathmandu), Bhutan (Thimphu), Bangladesh (Dhaka), Myanmar (Naypyidaw), Sri Lanka (Sri Jayawardenepura Kotte — legislative; Colombo — commercial), Maldives (Malé).
- Strategic Passes and Straits
- Important passes include Khyber (Pakistan), Karakoram (China), Nathu La and Jelep La (Sikkim-China). Key straits are Palk Strait (India-Sri Lanka), Ten Degree Channel (separating Andaman from Nicobar), Nine Degree Channel (separating Minicoy from Kalpeni and the rest of Lakshadweep), Eight Degree Channel (separating …
- Soil and Vegetation
- India has eight major soil types with alluvial soil covering the largest area (Northern Plains). Natural vegetation ranges from tropical rainforests in Western Ghats and Northeast to thorn forests in Rajasthan and mangroves in deltas.
Chemistry — General Knowledge and General Awareness · 8 cards
- Matter exists in three states
- solid (fixed shape and volume), liquid (fixed volume, variable shape), and gas (variable shape and volume). Changes between states—melting, boiling, condensation, sublimation—are physical changes, not chemical.
- Elements are pure substances
- made of one type of atom, like oxygen (O), gold (Au), or carbon (C). Compounds are substances formed by chemical combination of two or more elements in fixed ratios, like water (H₂O) or salt (NaCl).
- The periodic table arranges elements
- by increasing atomic number. Elements in the same vertical group share similar properties. For example, Group 1 contains alkali metals (sodium, potassium) that are highly reactive, and Group 18 contains noble gases (helium, neon) that are inert.
- Acids are substances that release hydrogen ions (H⁺)
- in water, taste sour, turn blue litmus red, and react with metals to produce hydrogen gas. Common acids include hydrochloric acid (HCl), sulfuric acid (H₂SO₄), and acetic acid (CH₃COOH).
- Bases are substances that release hydroxide ions (OH⁻)
- in water, taste bitter, feel slippery, turn red litmus blue, and neutralize acids. Common bases include sodium hydroxide (NaOH), calcium hydroxide [Ca(OH)₂], and ammonium hydroxide (NH₄OH).
- pH scale measures acidity or alkalinity
- from 0 to 14. pH < 7 is acidic, pH = 7 is neutral (pure water), and pH > 7 is basic/alkaline. Strong acids have pH 1–2, strong bases have pH 13–14.
- Salts form when acids react with bases
- in a neutralization reaction. The general equation is: Acid + Base → Salt + Water. Common salt (NaCl) forms from HCl + NaOH.
- Chemical reactions involve breaking old bonds and forming new ones
- . Signs include color change, gas evolution, precipitate formation, or temperature change. Types include combination, decomposition, displacement, and double displacement reactions.
Indian Polity and Constitution — General Knowledge and General Awareness · 8 cards
- The Constitution of India
- Adopted on 26 November 1949, came into force on 26 January 1950. It is the longest written constitution in the world with a Preamble and originally 395 Articles in 22 Parts, plus 8 Schedules (now 12 through amendments).
- Preamble
- The soul of the Constitution declaring India as a Sovereign, Socialist, Secular, Democratic, Republic. The words "Socialist" and "Secular" were added by the 42nd Amendment in 1976, and "Integrity" was added to the objectives.
- Federal Structure with Unitary Bias
- India has a federal system (Centre and States) but with a strong Centre. During emergencies, the Constitution becomes almost unitary. The President can impose President's Rule in states under Article 356.
- Three Organs of Government
- Legislature (makes laws), Executive (implements laws), and Judiciary (interprets laws). The principle of separation of powers exists but is not rigid; there are checks and balances among the three organs.
- Parliamentary System
- India follows the British Westminster model where the Executive is responsible to the Legislature. The President is the constitutional head, while the Prime Minister is the real executive head. Similarly, states have Governors and Chief Ministers.
- Fundamental Rights and Duties
- Part III (Articles 12–35) guarantees six categories of Fundamental Rights enforceable by courts. Part IVA (Article 51A, added by 42nd Amendment) lists 11 Fundamental Duties which are non-justiciable moral obligations.
- Directive Principles of State Policy (DPSP)
- Part IV (Articles 36–51) contains guidelines for the state to establish social and economic democracy. They are non-justiciable but fundamental in governance, covering welfare, education, and economic justice.
- Amendment Process
- Article 368 allows Parliament to amend the Constitution. Simple majority is needed for some provisions, special majority (two-thirds of present and voting) for most, and special majority plus ratification by half the states for federal structure changes.
Biology — General Knowledge and General Awareness · 8 cards
- Cell as the basic unit
- All living organisms are made of one or more cells. The cell is the smallest structural and functional unit of life. Unicellular organisms (amoeba, bacteria) consist of a single cell; multicellular organisms (humans, plants) have millions of specialised cells.
- Cell organelles and their roles
- Nucleus controls cell activities and contains genetic material (DNA). Mitochondria generate energy (ATP) and are called the powerhouse of the cell. Chloroplasts (in plant cells only) perform photosynthesis. Ribosomes synthesise proteins. Cell membrane regulates entry and exit of substances.
- Plant nutrition and photosynthesis
- Green plants prepare their own food using sunlight, carbon dioxide, water, and chlorophyll in a process called photosynthesis. The equation: Carbon dioxide + Water + Sunlight → Glucose + Oxygen. Stomata (tiny pores on leaves) regulate gas exchange.
- Human body systems work in coordination
- The digestive system breaks down food into nutrients. The respiratory system exchanges oxygen and carbon dioxide. The circulatory system transports blood, nutrients, and oxygen. The nervous system transmits signals and coordinates responses. The excretory system removes waste products.
- Disease classification
- Communicable diseases spread from person to person (malaria, tuberculosis, COVID-19) via air, water, vectors, or contact. Non-communicable diseases do not spread (diabetes, cancer, hypertension) and result from lifestyle, genetics, or deficiencies.
- Deficiency diseases result from lack of nutrients
- Vitamins and minerals are essential in small amounts. Lack of Vitamin A causes night blindness. Lack of Vitamin C causes scurvy. Lack of Vitamin D causes rickets. Iron deficiency causes anaemia. Iodine deficiency causes goitre.
- Microorganisms as disease agents
- Bacteria cause tuberculosis, cholera, typhoid. Viruses cause dengue, influenza, polio, AIDS. Protozoa cause malaria, amoebic dysentery. Fungi cause ringworm, athlete's foot. Knowing the pathogen type helps in understanding transmission and prevention.
- Immunity and vaccination
- The immune system defends against pathogens using white blood cells. Vaccines introduce weakened or dead pathogens to build immunity without causing disease. Examples: polio drops, MMR vaccine, BCG for tuberculosis.
Indian Economy — General Knowledge and General Awareness · 8 cards
- Three Sectors of Economy
- Primary (agriculture, mining), Secondary (manufacturing, construction), Tertiary (services like banking, IT, transport). India is transitioning from agriculture-dominant to services-dominant economy.
- Mixed Economy Model
- India follows a mixed economy where both government (public sector) and private enterprises operate. Post-1991 liberalization increased private sector role significantly.
- Reserve Bank of India (RBI)
- India's central bank established in 1935, controls monetary policy, issues currency, regulates commercial banks, and manages foreign exchange reserves.
- Fiscal vs Monetary Policy
- Fiscal policy involves government spending and taxation (managed by Finance Ministry). Monetary policy controls money supply and interest rates (managed by RBI).
- GDP and GNP
- Gross Domestic Product measures total value of goods and services produced within India. Gross National Product includes income from Indians abroad. GDP is the primary growth indicator.
- Inflation
- General rise in prices reducing purchasing power. Consumer Price Index (CPI) and Wholesale Price Index (WPI) measure inflation. RBI targets 4% CPI inflation with ±2% tolerance.
- Banking Structure
- Nationalized banks (like SBI, PNB) are government-owned. Private banks (HDFC, ICICI) and foreign banks also operate. Regional Rural Banks serve rural areas specifically.
- Government Schemes
- Central schemes target poverty alleviation, employment, rural development, financial inclusion, and social security. Knowing scheme names, objectives, and launch years is exam-critical.
General Science — General Knowledge and General Awareness · 8 cards
- Physics is about motion, energy and forces
- Understand the behaviour of objects (Newton's laws), energy transformations (potential to kinetic), properties of light (reflection, refraction) and electricity basics (current, resistance, conductors vs insulators).
- Chemistry deals with matter and its transformations
- Focus on atomic structure (protons, neutrons, electrons), the periodic table layout, chemical reactions (synthesis, decomposition), and properties of common substances like acids (pH < 7, turn litmus red), bases (pH > 7, slippery feel) and salts.
- Biology covers living systems
- The cell is the basic unit of life. Know major organelles (nucleus holds DNA, mitochondria produce energy, chloroplasts do photosynthesis in plants). Human body systems — digestive, respiratory, circulatory, nervous — and their main organs appear frequently.
- Nutrition and deficiency diseases
- Vitamins (A, B-complex, C, D, E, K) and minerals (iron, calcium, iodine) each have specific roles and deficiency symptoms. For example, Vitamin C deficiency causes scurvy, iodine deficiency causes goitre.
- Everyday applications connect theory to life
- Rusting is oxidation of iron, a mirror uses reflection, a lens in spectacles uses refraction, vaccines use weakened pathogens to build immunity, and pasteurisation kills bacteria in milk by heating.
- Measurement matters
- SI units are standard — metre (length), kilogram (mass), second (time), ampere (current), kelvin (temperature), mole (amount of substance), candela (luminous intensity). Know conversions: 1 km = 1000 m, 1 kg = 1000 g.
- Energy cannot be created or destroyed, only converted
- This is the law of conservation of energy. Potential energy (stored) converts to kinetic energy (motion) when you drop a ball. Chemical energy in food converts to mechanical energy in muscles.
- Diseases are caused by pathogens or deficiencies
- Bacteria cause tuberculosis and cholera, viruses cause polio and influenza, protozoa cause malaria, fungi cause ringworm. Non-infectious diseases include diabetes, hypertension and cancer.
Scientific Research — General Knowledge and General Awareness · 8 cards
- ISRO (Indian Space Research Organisation)
- is India's premier space agency headquartered in Bengaluru. It conducts satellite launches, planetary missions and develops launch vehicles (PSLV, GSLV) for civilian and commercial purposes.
- DRDO (Defence Research and Development Organisation)
- is headquartered in New Delhi and focuses on defence technology—missiles, radars, armaments, naval systems and strategic systems. Key programmes include Integrated Guided Missile Development Programme (IGMDP).
- Chandrayaan missions
- are lunar exploration projects. Chandrayaan-1 (2008) discovered water molecules on the Moon; Chandrayaan-2 (2019) aimed for a soft landing near the South Pole (orbiter succeeded, lander lost contact); Chandrayaan-3 (2023) achieved a successful soft landing.
- Mangalyaan (Mars Orbiter Mission, 2013)
- made India the first Asian nation and the first country globally to reach Mars orbit in its maiden attempt. It orbits Mars and studies surface features and atmosphere.
- Gaganyaan
- is India's upcoming human spaceflight programme aiming to send Indian astronauts (vyomanauts) to low Earth orbit by 2025. Test flights and crew module recoveries have already been conducted.
- PSLV (Polar Satellite Launch Vehicle)
- is ISRO's workhorse rocket for launching satellites into polar and sun-synchronous orbits. It has a near-perfect success rate and launched Chandrayaan-1, Mangalyaan and numerous foreign satellites.
- GSLV (Geosynchronous Satellite Launch Vehicle)
- is used for heavier payloads and geostationary satellites. GSLV Mk III (now called LVM3) launched Chandrayaan-2 and will launch Gaganyaan missions.
- Missiles under DRDO
- include Agni series (strategic ballistic missiles), Prithvi (tactical surface-to-surface), BrahMos (supersonic cruise missile, joint Indo-Russian venture) and Akash (surface-to-air missile system).
Sports — General Knowledge and General Awareness · 8 cards
- Sport-Trophy Association
- Each major sport has signature trophies. Cricket has World Cup and IPL; hockey has Sultan Azlan Shah Cup; football has FIFA World Cup and Durand Cup; badminton has Thomas Cup and Uber Cup. Knowing which trophy belongs to which sport is the foundation.
- Periodicity Matters
- World Cups occur every 4 years (cricket, football, hockey). Commonwealth and Asian Games happen every 4 years. Knowing the cycle helps you remember recent winners and anticipate which events occurred recently.
- Indian vs International
- Questions can ask about purely Indian tournaments (Ranji Trophy, Santosh Trophy) or international events (Olympics, World Championships). Keep both categories clear in your mind.
- Individual vs Team Sports
- Cricket, hockey and football are team sports. Badminton, tennis, athletics, wrestling and boxing produce individual champions. Questions may ask "Player X is associated with which sport?" for individual athletes.
- Olympic Sports Priority
- Athletics, shooting, wrestling, boxing, badminton, hockey and weightlifting produce Indian Olympic medals.
- Current Affairs Window
- "Recent winners" typically means last 2–3 years from exam date. Winners from 2022–2024 are most relevant for 2024–2025 exams. Update your notes quarterly.
- Multiple Names
- Some trophies have full formal names (ICC Men's Cricket World Cup) but are commonly called just "Cricket World Cup". Know both versions.
- Sports Awards
- Major awards like Khel Ratna, Arjuna Award and Dronacharya Award for coaches are equally important and appear in questions.
Culture — General Knowledge and General Awareness · 8 cards
- State-Dance Mapping
- Each major Indian state has a signature classical or folk dance. Classical forms (Bharatanatyam, Kathak, Odissi, Kathakali, Kuchipudi, Manipuri, Mohiniyattam, Sattriya) are recognised by Sangeet Natak Akademi. Folk dances (Bhangra, Garba, Bihu) reflect regional harvest and celebration traditions.
- Festival Calendar
- Indian festivals follow lunar (Hindu, Buddhist), solar (Sikh, tribal), and Gregorian (Christian, secular) calendars. Major festivals cluster around harvest seasons (Pongal in January, Baisakhi in April, Onam in August–September) or mythological events (Diwali for Rama's return, Holi for Holika's defeat).
- Musical Instruments Classification
- Indian instruments fall into four categories per Natya Shastra — Tata (stringed: sitar, veena), Sushira (wind: flute, shehnai), Avanaddha (percussion with membrane: tabla, mridangam), Ghana (solid percussion: cymbals, ghatam). Each region has distinct instruments tied to its classical tradition.
- Architectural Styles
- Indian monuments reflect three main temple styles — Nagara (North Indian, curvilinear shikhara), Dravidian (South Indian, pyramidal vimana with gopurams), and Vesara (hybrid, Deccan style). Mughal monuments feature Persian domes, arches, and inlay work.
- UNESCO World Heritage Sites
- India has 42 UNESCO sites (as of 2024). Major sites include Taj Mahal, Qutub Minar, Red Fort, Ajanta-Ellora, Hampi, Konark Sun Temple, and Mahabodhi Temple. Know the state, year of inscription, and historical period for each.
- Intangible Cultural Heritage
- Beyond physical monuments, UNESCO recognises traditions like Kumbh Mela, Ramlila, Kalbelia dance, and Vedic chanting as intangible heritage. These appear in questions linking festivals or practices to UNESCO lists.
- Festival-Region Association
- Regional festivals like Pongal (Tamil Nadu), Onam (Kerala), Bihu (Assam), Durga Puja (West Bengal), and Baisakhi (Punjab) are identity markers. Questions test whether you can match the festival to its home state and describe its core ritual.
- Colonial and Medieval Monuments
- British-era structures (Victoria Memorial, Gateway of India) and Indo-Islamic monuments (Qutub Minar, Fatehpur Sikri) are important. Know the builder, architectural influences, and current location-state for each.
Awards and Honours — General Knowledge and General Awareness · 4 cards
- Bharat Ratna
- is India's highest civilian award, given for exceptional service in any field. It has no formal recommendations and is announced directly by the President. No more than three awards per year. Notable: no monetary grant, recipients get precedence in the Indian Order of Precedence.
- Padma Awards
- are announced on Republic Day each year. They come in three tiers: Padma Vibhushan (exceptional service), Padma Bhushan (distinguished service), Padma Shri (distinguished service in any field). Padma Shri is the fourth-highest civilian honour after Bharat Ratna and the two higher Padmas.
- Gallantry Awards
- recognise acts of bravery. They are divided into wartime (Param Vir Chakra, Maha Vir Chakra, Vir Chakra) and peacetime (Ashok Chakra, Kirti Chakra, Shaurya Chakra). Param Vir Chakra is the highest military decoration, equivalent to the Victoria Cross or Medal of Honor.
- Nobel Prize
- winners from India include Rabindranath Tagore (Literature, 1913), C.V. Raman (Physics, 1930), Mother Teresa (Peace, 1979), Amartya Sen (Economics, 1998), Kailash Satyarthi (Peace, 2014), and Abhijit Banerjee (Economics, 2019). Note that some laureates (e.g.
Current Affairs — General Knowledge and General Awareness · 8 cards
- National Events
- Government schemes (Pradhan Mantri initiatives), constitutional amendments, new laws (criminal law reforms, data protection), railway projects (Vande Bharat corridors), infrastructure milestones (metro inaugurations, bridges), and state elections/political changes.
- International Relations
- Bilateral summits (India-USA, India-Russia), G20/BRICS outcomes, border agreements, trade pacts, UN votes, Indian diaspora engagement, and multilateral forum memberships (SCO, Quad).
- Awards and Honours
- Padma Awards (Padma Vibhushan/Bhushan/Shri), Bharat Ratna, gallantry awards (Param Vir Chakra, Ashok Chakra), international recognitions (Nobel, Ramon Magsaysay), sports awards (Khel Ratna, Arjuna), and film/literature awards (National Film Awards, Booker Prize).
- Sports Updates
- World Cup/Championship winners (cricket, hockey, badminton), Olympic/Asian Games medal tallies, Khel Ratna recipients, record-breaking performances, and hosting rights for major tournaments (ODI World Cup 2023, Asian Games).
- Science and Technology
- ISRO missions (Chandrayaan-3, Aditya-L1), DRDO developments (missiles, defence tech), national awards in science (Shanti Swarup Bhatnagar), health initiatives (vaccination drives, disease eradication), and AI/digital India milestones.
- Economic Developments
- Budget highlights (tax slabs, allocations), RBI policy changes (repo rate, inflation targets), GST amendments, Ease of Doing Business rankings, GDP growth rates, and major infrastructure funds (PM Gati Shakti).
- Appointments and Resignations
- New Chief Justice of India, Election Commissioners, CAG, Service Chiefs (Army/Navy/Air Force), RBI Governor, and heads of constitutional bodies (UPSC Chairman, CVC).
- Books and Authors
- Autobiographies by political leaders, notable fiction/non-fiction releases, translated works winning international acclaim, and government-published white papers or reports.
Static GK — General Knowledge and General Awareness · 7 cards
- National Symbols are identity markers
- Every sovereign nation designates official symbols (flag, emblem, anthem, animal, bird, etc.) that represent its culture and values. India has seven core national symbols you must know by heart.
- Important Days serve dual purposes
- They commemorate historical events or raise awareness about social causes. SSC GD asks both the date and the theme/significance. Group days by month for easier recall.
- Capital cities
- are the administrative headquarters of countries. Some nations have multiple capitals (legislative, judicial, executive). For SSC GD, learn the primary/official capital and focus on India's neighbors, SAARC countries, G20 members, and UN Security Council permanent members.
- Currency knowledge
- tests basic international awareness. Know the currency name and its common symbol/code (USD, EUR, JPY, etc.). Prioritize India's trading partners and neighboring countries.
- Static GK overlaps with Current Affairs
- when new days are declared or symbols updated. For instance, if a state changes its capital or a new international day is adopted by the UN, it enters Static GK after one year.
- Mnemonic devices accelerate memorization
- Create acronyms for lists (e.g., "PLANT" for national symbols: Peacock, Lotus, Anthem, National animal Tiger). Group similar items: all South Asian capitals together, all February days together.
- Negative marking makes guessing risky
- In SSC GD, each wrong answer costs 0.25 marks. Invest time to learn facts accurately rather than relying on vague recognition during the exam.
Computation of Whole Numbers — Elementary Mathematics · 8 cards
- Whole numbers
- are the set {0, 1, 2, 3, ...} with no fractions or negative values. Addition and multiplication always stay within whole numbers; subtraction (5 − 7 = −2) and division (5 ÷ 8) may not.
- Place value system
- organises digits by powers of ten: units, tens, hundreds, thousands, etc. Aligning place values vertically is critical in column addition and subtraction.
- Carrying (addition) and borrowing (subtraction)
- manage overflow and underflow between place columns. Missing a carry or borrow is a common error.
- Multiplication
- is repeated addition. Distributive property lets you break large multiplications into manageable parts: 47 × 8 = (40 × 8) + (7 × 8).
- Division
- produces a quotient and possibly a remainder. For whole numbers: Dividend = Divisor × Quotient + Remainder, where Remainder < Divisor.
- Order of operations
- matters when multiple operations appear together. Without brackets, multiplication and division precede addition and subtraction (BODMAS framework, covered separately).
- Estimation and approximation
- help verify answers. Rounding each number to the nearest ten or hundred gives a ballpark figure to catch major blunders.
- Word problem keywords
- signal which operation to use: "total" or "sum" suggests addition; "difference" or "left" suggests subtraction; "times" or "product" suggests multiplication; "share equally" or "per unit" suggests division.
Decimals and Fractions — Elementary Mathematics · 8 cards
- Fraction basics
- A fraction a/b has numerator a (top) and denominator b (bottom). Proper fractions have a < b; improper fractions have a ≥ b. A mixed number combines a whole number and a proper fraction (e.g. 2 1/3).
- Decimal place value
- In 45.678, the 6 is in the tenths place (6/10), 7 in hundredths (7/100), and 8 in thousandths (8/1000). Understanding place value prevents errors when adding or comparing decimals.
- Equivalent fractions
- Multiplying or dividing both numerator and denominator by the same nonzero number gives an equivalent fraction. Example: 2/3 = 4/6 = 6/9. Simplification means reducing to lowest terms by dividing by the greatest common divisor.
- Conversion fraction to decimal
- Divide the numerator by the denominator. Example: 3/4 = 3 ÷ 4 = 0.75. Some fractions give terminating decimals (like 1/2 = 0.5), others give recurring decimals (like 1/3 = 0.333...).
- Conversion decimal to fraction
- Write the decimal as a fraction over the appropriate power of 10, then simplify. Example: 0.36 = 36/100 = 9/25 after dividing numerator and denominator by 4.
- Operations on fractions
- For addition/subtraction, find a common denominator, convert both fractions, then add/subtract numerators. For multiplication, multiply numerators and denominators directly. For division, multiply by the reciprocal of the divisor.
- Operations on decimals
- Align decimal points for addition and subtraction. For multiplication, ignore decimals initially, multiply as whole numbers, then count total decimal places in factors and place the decimal in the product. For division, make the divisor a whole number by shifting decimals in both dividend and divisor.
- Recurring decimals
- Represented by a bar over repeating digits. Example: 1/3 = 0.3̄ means 0.333... To convert a recurring decimal to a fraction, use algebraic techniques involving multiplication and subtraction.
Relationship Between Numbers — Elementary Mathematics · 8 cards
- Natural hierarchy
- Natural numbers ⊂ Whole numbers ⊂ Integers ⊂ Rational numbers ⊂ Real numbers. Every natural number is also a whole number, integer, rational, and real number, but the reverse isn't true.
- Comparison principle
- For positive numbers, compare magnitudes directly. For negative numbers, the number closer to zero is greater (−2 > −5). When comparing opposite-sign numbers, positive is always greater than negative.
- Decimal comparison
- Compare from left to right—whole part first, then first decimal place, then second decimal place, and so on. 0.56 > 0.499 even though 499 > 56, because the first decimal place decides (5 > 4).
- Fraction comparison
- When denominators are equal, larger numerator means larger fraction. When numerators are equal, smaller denominator means larger fraction. For unlike fractions, cross-multiply or convert to common denominator.
- Percentage as hundredths
- Any percentage is that number divided by 100. So 45% = 45/100 = 0.45. This makes percentage-decimal-fraction conversions straightforward.
- Ordering strategy
- When arranging multiple numbers, convert all to the same format (usually decimals) for easiest comparison. Pick the format that requires least calculation.
- Inequality transitivity
- If A > B and B > C, then A > C. Use this to eliminate options in multiple-choice questions without comparing every pair.
- Proportional relationships
- If two numbers maintain a constant ratio, they're directly proportional. If their product is constant, they're inversely proportional. These relationships help predict behavior when one number changes.
Fundamental Arithmetical Operations — Elementary Mathematics · 8 cards
- BODMAS Rule
- The universal order of operations is Brackets first, then Orders (powers/roots), followed by Division and Multiplication (left to right), and finally Addition and Subtraction (left to right). Many students misremember this as "do multiplication before division"—both have equal priority and are solved left to right.
- Brackets Hierarchy
- When multiple brackets appear, solve innermost first: ( ) are solved first, then { }, then [ ]. Always work inside-out, simplifying the deepest nested operation before moving outward.
- Left-to-Right Rule
- For operations of equal priority (division and multiplication, or addition and subtraction), always proceed from left to right. The expression 20 ÷ 4 × 5 equals (20 ÷ 4) × 5 = 25, not 20 ÷ (4 × 5) = 1.
- Fraction Operations
- To add/subtract fractions, find the LCM of denominators. To multiply, multiply numerators and denominators directly. To divide, multiply by the reciprocal of the divisor. Mixed fractions must be converted to improper fractions before any operation.
- Decimal Alignment
- When adding or subtracting decimals, align decimal points vertically. When multiplying, count total decimal places in both numbers and place the point accordingly in the answer. For division, shift the decimal in divisor to make it whole, then shift equally in dividend.
- Order of Powers
- When simplifying expressions with exponents, remember powers are "orders" in BODMAS—they come after brackets but before multiplication/division. Also recall: x^a × x^b = x^(a+b), x^a ÷ x^b = x^(a-b), and (x^a)^b = x^(a×b).
- Negative Number Rules
- Two negatives make a positive when multiplying or dividing: (–3) × (–4) = +12. When adding/subtracting, treat the negative as "opposite direction": 5 – (–3) becomes 5 + 3 = 8.
- Zero Properties
- Any number multiplied by zero equals zero. Division by zero is undefined (never write an answer for it). Zero divided by any non-zero number equals zero: 0 ÷ 5 = 0.
Percentage — Elementary Mathematics · 7 cards
- Definition
- x% means x/100. To convert a percentage to a fraction or decimal, divide by 100. To convert a fraction or decimal to percentage, multiply by 100.
- Base Value
- The quantity on which percentage is calculated is called the base or reference value. "20% of 500" means base = 500. Always identify the base correctly.
- Percentage Increase/Decrease
- If a value V increases by r%, the new value = V × (1 + r/100). If it decreases by r%, new value = V × (1 - r/100).
- Percentage Change Formula
- Percentage change = [(New Value - Original Value) / Original Value] × 100. Positive result = increase, negative = decrease.
- Successive Percentage Changes
- When two percentage changes happen one after another, you cannot simply add them. Use the formula: Net effect = a + b + (ab/100), where a and b are the two percentage changes (use negative sign for decrease).
- Reverse Percentage
- If final value after a% increase is F, then original value = F / (1 + a/100). Similarly for decrease, original = F / (1 - a/100).
- Percentage to Fraction Shortcuts
- Memorise common conversions: 50% = 1/2, 25% = 1/4, 20% = 1/5, 12.5% = 1/8, 10% = 1/10, 33.33% = 1/3, 66.66% = 2/3.
Ratio and Proportion — Elementary Mathematics · 8 cards
- Ratio
- is the comparison of two quantities of the same kind, written as a:b or a/b. A ratio of 3:5 means the first quantity is 3 parts and the second is 5 parts out of a total of 8 parts.
- Proportion
- states that two ratios are equal: a:b = c:d or a/b = c/d. The cross-multiplication property ad = bc is the workhorse for solving proportion problems.
- Compound ratio
- is the ratio obtained by multiplying the numerators and denominators of two or more ratios. The compound ratio of a:b and c:d is (ac):(bd).
- Continued ratio
- a:b:c means a quantity is divided into parts in the ratio a, b, and c. If the total is T, then the three parts are (a/(a+b+c))×T, (b/(a+b+c))×T, and (c/(a+b+c))×T.
- Fourth proportional
- to a, b, c is d such that a:b = c:d. Solve for d = (b×c)/a.
- Third proportional
- to a and b is c such that a:b = b:c. Solve for c = b²/a.
- Mean proportional
- (geometric mean) between a and b is √(ab). It satisfies a:m = m:b.
- Partnership
- problems distribute profit or loss in the ratio of investments. If two partners invest I₁ and I₂ for times T₁ and T₂, profit is shared in the ratio (I₁×T₁):(I₂×T₂). For equal time, profit shares are simply in the ratio of investments.
Average — Elementary Mathematics · 4 cards
- Average (Mean)
- is the sum of all observations divided by the number of observations. Formula: Average = Total Sum ÷ Number of Items. This is the foundation of every average problem.
- Total Sum
- is always the product of average and count: Total = Average × Number of Items. This reverse calculation is crucial for solving most problems where the total is unknown.
- Weighted Average
- applies when different groups contribute differently. If group A has average x with n₁ members and group B has average y with n₂ members, the combined average = (n₁x + n₂y) ÷ (n₁ + n₂). Never just average the two averages unless group sizes are equal.
- Replacement problems
- occur when one member is replaced by another. The change in total equals the difference between the new and old member's value. Change in Average = Change in Total ÷ Number of Items.
Interest — Elementary Mathematics · 8 cards
- Principal (P)
- The original sum of money borrowed or invested. This is your starting amount before any interest is added.
- Rate of Interest (R)
- The percentage charged per time period (usually per annum). Always express rate as a percentage in formulas; for example, 5% means R = 5.
- Time (T)
- The duration for which money is borrowed or invested, typically in years. Convert months into years by dividing by 12 if needed.
- Simple Interest (SI)
- Interest calculated only on the principal throughout the entire period. It remains the same every year and does not compound.
- Compound Interest (CI)
- Interest calculated on the principal plus any interest already earned. The amount grows exponentially because each period's interest becomes part of the next period's principal.
- Amount (A)
- The total money after adding interest to the principal. For SI, A = P + SI. For CI, amount is calculated using the compound formula directly.
- Compounding Frequency
- CI can be calculated annually, half-yearly, quarterly, or monthly. Adjust the rate and time accordingly: if half-yearly, double the time and halve the rate.
- Difference between CI and SI
- For the same P, R, and T, CI is always greater than SI (except for T = 1 year when they are equal). The difference grows with time.
Profit and Loss — Elementary Mathematics · 7 cards
- Cost Price (CP)
- is the amount paid to acquire an article. It includes purchase price plus any additional expenses like transport or repair (called overhead expenses).
- Selling Price (SP)
- is the amount received when the article is sold. Profit or loss is always calculated on the CP, not the SP.
- Profit
- occurs when SP > CP. Profit = SP − CP. Profit percentage = (Profit / CP) × 100.
- Loss
- occurs when SP < CP. Loss = CP − SP. Loss percentage = (Loss / CP) × 100.
- Marked Price (MP)
- is the price tag displayed on the article, often higher than CP. The seller announces discounts on this marked price.
- Discount
- is a reduction given on the marked price. Discount = MP − SP. Discount percentage is always calculated on MP: Discount% = (Discount / MP) × 100.
- Successive transactions
- If an article passes through multiple hands (A → B → C), calculate each person's gain/loss separately using their individual CP and SP.
Discount — Elementary Mathematics · 7 cards
- Marked Price (MP)
- The printed or listed price of an item before any discount is applied. Also called List Price or Tag Price.
- Discount
- The reduction offered on the marked price, usually expressed as a percentage of the marked price. Discount = MP − SP.
- Selling Price (SP)
- The actual price at which the item is sold to the customer after applying the discount. SP = MP − Discount.
- Single Discount
- A one-time percentage reduction on the marked price. If discount is d%, then SP = MP × (100 − d)/100.
- Successive Discounts
- Two or more discounts applied one after another. Each subsequent discount is calculated on the price remaining after the previous discount, not on the original marked price.
- Equivalent Single Discount
- When two successive discounts d₁% and d₂% are applied, the net effect is equivalent to a single discount of [d₁ + d₂ − (d₁ × d₂)/100]%.
- Discount and Profit/Loss
- Discount is given on marked price; profit or loss is calculated on cost price. A shopkeeper may mark up an item above cost price, then offer a discount on that marked price and still make a profit.
Mensuration — Elementary Mathematics · 4 cards
- Area
- measures the surface enclosed by a 2-D figure, expressed in square units (cm², m², etc.). Perimeter measures the boundary length, expressed in linear units (cm, m, etc.).
- Surface area
- of a 3-D object is the total area covering all its outer faces. Volume measures the space inside a 3-D object, expressed in cubic units (cm³, m³, litres).
- Diagonal
- of a rectangle = √(length² + breadth²). Diagonal of a square with side a = *a*√2. These often appear as intermediate steps in multi-step problems.
- Unit conversions
- 1 m = 100 cm, so 1 m² = 10,000 cm² and 1 m³ = 1,000,000 cm³. Also, 1 litre = 1000 cm³. Always convert to a common unit before calculating.
Time and Distance — Elementary Mathematics · 8 cards
- Fundamental Relationship
- Distance = Speed × Time. Every problem boils down to finding one quantity when the other two are known.
- Unit Conversion
- 1 km/h = 5/18 m/s. Multiply km/h by 5/18 to get m/s; multiply m/s by 18/5 to get km/h. Trains and platform problems almost always need m/s.
- Average Speed
- When distances are equal, average speed = 2xy/(x+y) where x and y are the two speeds. When times are equal, average speed is the simple arithmetic mean (x+y)/2. Never just average speeds blindly.
- Relative Speed
- When two objects move in the same direction, relative speed = |Speed₁ − Speed₂|. When moving toward each other (opposite directions), relative speed = Speed₁ + Speed₂.
- Train Problems
- Length of train matters. Time to cross a pole/man = (Length of train) / (Speed of train). Time to cross a platform = (Length of train + Length of platform) / (Speed of train).
- Boats and Streams
- Speed in still water = b, stream speed = s. Downstream speed = b + s, upstream speed = b − s. If downstream and upstream speeds are given, still water speed = (downstream + upstream)/2 and stream speed = (downstream − upstream)/2.
- Meeting and Crossing
- If two objects start simultaneously from opposite ends, time to meet = (Total distance) / (Sum of speeds). If they move in the same direction with the slower one ahead, time for the faster to catch up = (Initial gap) / (Difference in speeds).
- Return Journey
- If a person travels to a place at speed x and returns at speed y, the average speed for the whole journey is 2xy/(x+y), not (x+y)/2.
Time and Work — Elementary Mathematics · 8 cards
- Work as Unity
- The total work is always assumed to be 1 unit (or 100%) unless stated otherwise. This standardization makes calculations uniform across all problems.
- Work Rate (Efficiency)
- If a person completes work in n days, their one-day work (rate) is 1/n. If A does a job in 10 days, A's rate = 1/10 per day.
- Combined Work Rate
- When multiple people work together, their rates add. If A works at 1/10 per day and B at 1/15 per day, together they work at (1/10 + 1/15) per day.
- Man-Days Concept
- Total work can be expressed as (number of people) × (number of days). If 5 men complete work in 12 days, the work = 60 man-days. This same work can be done by 10 men in 6 days.
- Negative Work (Pipes)
- In pipe problems, filling pipes contribute positive work while emptying/leak pipes contribute negative work. Net rate = (sum of filling rates) – (sum of emptying rates).
- Partial Work Tracking
- When workers alternate on different days, calculate work done in one complete cycle, then find how many full cycles occur, and handle the remaining work in the final partial cycle.
- Efficiency Ratio
- If the ratio of time taken by two workers is a:b, their efficiency ratio is b:a (inverse relationship). A person who takes less time is more efficient.
- Wages Distribution
- Wages are distributed in the ratio of work done, which equals the ratio of (efficiency × time worked) for each person.
Simplification — Elementary Mathematics · 8 cards
- BODMAS Rule
- Operations must be performed in strict order—Brackets first, then Orders (powers/roots), then Division and Multiplication (left to right), finally Addition and Subtraction (left to right). Never work left-to-right blindly.
- Brackets hierarchy
- When nested brackets appear, solve innermost first: ( ) then { } then [ ]. Always clear all brackets before moving to other operations.
- Division and Multiplication are equal priority
- These two operations have the same precedence. Perform them as they appear from left to right, not all division first or all multiplication first.
- Addition and Subtraction are equal priority
- Similarly, addition and subtraction share equal status. Execute them left to right after all higher operations are complete.
- Surds
- A surd is an irrational root that cannot be simplified to a rational number, written as √n. Operations on surds follow algebraic rules: √a × √b = √(ab) and √a / √b = √(a/b).
- Rationalizing the denominator
- When a surd appears in the denominator, multiply both numerator and denominator by the surd to eliminate it. For expressions like 1/(a + √b), multiply by the conjugate (a − √b).
- Perfect squares and cubes
- Memorize squares up to 30 and cubes up to 20. This allows instant recognition: √625 = 25, ∛1728 = 12, saving crucial seconds during exams.
- Approximation for non-perfect roots
- For roots like √50 or √80, factor out perfect squares: √50 = √(25×2) = 5√2. This simplifies calculation and comparison tasks.
English Language — English / Hindi · 8 cards
- Grammar forms the backbone
- Understanding tenses, subject-verb agreement, articles, prepositions, and sentence structure will help you tackle multiple question types simultaneously.
- Context is king
- In fill in the blanks and cloze tests, the correct answer fits both grammatically and contextually. Read the full sentence before choosing.
- Error spotting follows patterns
- Most errors fall into predictable categories—subject-verb disagreement, wrong tense, incorrect preposition, article mistakes, and pronoun-antecedent issues.
- Vocabulary building is gradual
- Don't memorize word lists blindly. Learn synonyms and antonyms in groups of related words, understand usage in sentences, and revise regularly.
- Idioms have fixed meanings
- An idiom's meaning differs from its literal words. "Break the ice" means to initiate conversation, not to actually break ice. Learn common idioms with example sentences.
- One-word substitution tests precise vocabulary
- The substitute must capture the exact meaning of the phrase—not just a related word. "A person who loves books" is a bibliophile, not a reader.
- Reading comprehension rewards careful reading
- Read the passage first to understand the main idea, then tackle questions. Most answers are directly stated or logically inferable from the text.
- Spelling errors are usually in common words
- SSC tests frequently misspelled everyday words rather than rare vocabulary. Words with double letters (accommodate, embarrass) and silent letters (gauge, rhetoric) are common traps.
Sandhi (संधि) — English / Hindi · 8 cards
- Sandhi definition
- The phonetic transformation that occurs when the last letter of one word meets the first letter of the next word, creating a smooth, unified sound. Example: देव + आलय = देवालय.
- Vichchhed (विच्छेद)
- The reverse process—breaking a sandhi compound back into its original component words. For example, given "महर्षि", identify that it came from "महा + ऋषि".
- Three main types
- Swar Sandhi (vowel + vowel), Vyanjan Sandhi (consonant-related changes), and Visarg Sandhi (changes involving visarga ः). Each follows distinct transformation rules.
- Swar Sandhi rules
- When two vowels meet, they may combine into a single long vowel (दीर्घ), form a semi-vowel (यण्), create a vowel blend (गुण/वृद्धि), or merge into अय्/अव् (अयादि).
- Vyanjan Sandhi principle
- Consonant changes occur based on voicing, aspiration, and the presence of nasal sounds. The most common is the conversion of त्/द् to the following consonant's type.
- Visarg Sandhi patterns
- The visarga (ः) either disappears, converts to a vowel (ओ/अ), or becomes स्/र् depending on the following sound. Example: मनः + अनुकूल = मनोनुकूल.
- Exam strategy
- You rarely need to derive sandhi from scratch. Instead, recognise patterns in answer choices and eliminate obviously wrong combinations using vowel-consonant compatibility.
- Context matters
- In SSC GD, sandhi questions test recognition, not production. Practice identifying which sandhi type was used rather than memorising every sub-rule.
Error Spotting — English / Hindi · 8 cards
- Subject-Verb Agreement
- The verb must match the subject in number (singular/plural) and person. A plural subject needs a plural verb; a singular subject needs a singular verb. Phrases between subject and verb often distract students.
- Tense Consistency
- A sentence should maintain logical tense throughout unless a time shift is explicitly indicated. Mixing past, present, and future forms arbitrarily signals an error.
- Article Usage
- "A" is used before consonant sounds, "an" before vowel sounds. "The" is for specific nouns. Countable singular nouns usually need an article; uncountable and plural nouns often don't require one.
- Preposition Errors
- English has fixed preposition pairings (interested in, capable of, died of, etc.). Using the wrong preposition is a very common exam trap.
- Pronoun-Antecedent Agreement
- Pronouns must match their antecedents in number, gender, and person. "Each of the boys brought his bag" (not their).
- Comparative and Superlative Forms
- Use comparative (-er, more) for two items, superlative (-est, most) for three or more. Don't double-mark: "more better" is wrong.
- Word Form Errors
- Confusing adjective/adverb forms (quick vs quickly), or noun/verb forms (advice vs advise). Each word class has its grammatical slot.
- Redundancy and Wordiness
- Phrases like "return back," "both the two," or "annual yearly" repeat meaning unnecessarily, signaling an error in formal English.
Hindi Language — English / Hindi · 8 cards
- Upsarg and Pratyay
- are prefixes and suffixes that modify root words to create new meanings. For example, "प्र + हार = प्रहार" (prefix) and "लिख + आवट = लिखावट" (suffix). Recognizing these helps decode unfamiliar words and understand word families.
- Paryayvachi (Synonyms)
- are words with similar meanings, tested through direct matching or sentence completion. Common examples: सूर्य–दिनकर–रवि, जल–नीर–पानी. Build clusters of 3–4 synonyms per common noun.
- Vilom (Antonyms)
- are opposite-meaning words essential for vocabulary questions. Patterns include prefix-based opposites (सुख–दुःख) and root-level opposites (प्रकाश–अंधकार, आदि–अंत).
- Muhavare (Idioms) and Lokoktiyan (Proverbs)
- test contextual understanding. Idioms are figurative phrases (आँखों में धूल झोंकना = to deceive), while proverbs are traditional sayings (अंधों में काना राजा). Know the meaning, not just literal translation.
- Samas
- is compound word formation where two or more words combine into one with a specific relationship. Six main types exist: Tatpurush, Dvandva, Bahuvrihi, Avyayibhav, Dvigu, and Karmadharaya. Understanding these helps analyze complex words.
- Vakya Shuddhi (Sentence Correction)
- involves identifying and fixing errors in gender, number agreement, tense, postpositions, and word order. Most errors are gender-number mismatches or wrong postposition usage.
- Sandhi
- rules govern how letters join when two words combine, with three types: Svar (vowel), Vyanjan (consonant), and Visarg sandhi. Common in compound words and Sanskritized Hindi.
- Karyalayi Hindi
- refers to official correspondence vocabulary — formal terms used in government offices, files, and notices. Examples: प्रेषक (sender), प्राप्तकर्ता (receiver), सन्दर्भ (reference).
Upsarg / Pratyay (उपसर्ग व प्रत्यय) — English / Hindi · 2 cards
- Upsarg (उपसर्ग)
- are syllables or word elements added before a root word (धातु/मूल शब्द) to modify or completely change its meaning. Example: अ + सत्य = असत्य (untrue).
- Pratyay (प्रत्यय)
- are syllables added after a root word to form derivatives, often changing the word class (noun to adjective, verb to noun, etc.). Example: सुन + आई = सुनाई (hearing).
Phrase Replacement — English / Hindi · 8 cards
- Subject-Verb Agreement
- The verb must match the subject in number (singular/plural) and person. Watch for intervening phrases that obscure the true subject—"One of the boys is coming" not "are coming."
- Tense Consistency
- Maintain logical tense sequence throughout the sentence. If the main clause uses past tense, dependent clauses should align unless expressing universal truths or clear time shifts.
- Preposition Accuracy
- Many verbs and adjectives require specific prepositions—"interested in," "famous for," "prevent from." Wrong preposition = wrong answer, even if grammar appears fine otherwise.
- Articles and Determiners
- Choose "a/an" for singular countable nouns (first mention, non-specific), "the" for specific reference, and zero article for plural/uncountable nouns in general statements.
- Idiomatic Correctness
- English has fixed phrases like "in spite of" not "in despite of," "capable of" not "capable to." These cannot be deduced from logic alone—you must know the standard form.
- Comparative and Superlative Forms
- Use "more/most" with longer adjectives, "-er/-est" with short ones. Never mix forms: not "more better" or "most fastest."
- Modifiers and Parallelism
- Words modifying a noun or verb must be placed correctly and maintain parallel structure in lists—"He likes reading, writing, and jogging" not "to read, writing, and jog."
- Active vs Passive Voice
- Ensure the voice suits the context. Passive voice needs proper "be + past participle" construction and logical agent placement if mentioned.
Paryayvachi (पर्यायवाची) — English / Hindi · 6 cards
- Paryayvachi definition
- Words that convey identical or very similar meanings are called paryayvachi shabd. For example, जल (jal), नीर (neer), पानी (paani) all mean water.
- Single word, multiple synonyms
- Most important Hindi words have 4–8 common synonyms. You must know at least 3–4 for each high-frequency word to handle any exam variant.
- Context sensitivity
- Some synonyms are interchangeable in all contexts, while others have specific literary or regional usage. Exam questions usually test commonly acceptable synonyms rather than rare poetic variants.
- Sanskrit-origin dominance
- Many Hindi synonyms come from Sanskrit (tatsam words), so recognizing root patterns helps. Words like सूर्य, रवि, भानु, दिनकर all relate to sun and share Sanskrit roots.
- Repetition in literature
- Classical Hindi poetry and prose use multiple synonyms for the same concept for stylistic variation. Familiarity with basic Hindi literature helps recognize these patterns.
- Regional variations
- Some synonyms are more common in specific Hindi-speaking regions, but SSC GD tests standard Hindi vocabulary accepted across all regions.
Synonyms and Antonyms — English / Hindi · 8 cards
- Synonym
- A word that has the same or nearly the same meaning as another word. Example: "happy" and "joyful" are synonyms.
- Antonym
- A word that has the opposite meaning to another word. Example: "hot" and "cold" are antonyms.
- Context matters
- A word may have different synonyms depending on usage. "Bright" means intelligent (synonym: clever) or luminous (synonym: radiant).
- Degree of similarity
- Not all synonyms are perfect replacements. "Angry" and "furious" are synonyms, but "furious" indicates greater intensity.
- Types of antonyms
- Gradable antonyms (hot–cold with degrees between), complementary antonyms (alive–dead with no middle ground), and relational antonyms (teacher–student, buy–sell).
- Prefixes create antonyms
- Adding un-, in-, dis-, non- often creates the opposite: happy–unhappy, possible–impossible, honest–dishonest.
- Confusable words
- Some words look similar but aren't synonyms. "Adapt" (adjust) and "adopt" (take up) are different despite similar spelling.
- Register and formality
- Choose synonyms matching the context. "Kids" and "children" are synonyms, but "children" is more formal.
Vilom / Viparitarthak (विलोम) — English / Hindi · 6 cards
- Definition of Vilom
- A vilom shabd is a word that expresses the exact opposite meaning of another word. For example, दिन (day) ↔ रात (night), सत्य (truth) ↔ झूठ (falsehood).
- Recognition through prefixes
- Many Hindi antonyms are formed by adding negative prefixes. अ- or अन- (non-/in-): सभ्य → असभ्य, उचित → अनुचित. वि- (dis-/mis-): वास → विवास, स्मरण → विस्मरण. Understanding these patterns helps you identify opposites even for unfamiliar words.
- Context matters
- Some words have multiple antonyms depending on context. उत्तर can mean north (opposite: दक्षिण/south) or answer (opposite: प्रश्न/question). Always consider the most common usage in SSC GD context.
- Pairs vs. spectrum words
- Some antonyms are binary pairs (जीवन–मृत्यु, आगमन–प्रस्थान), while others exist on a spectrum where multiple words can serve as opposites with varying intensity (गर्म can oppose ठंडा, शीतल, or हिमाच्छादित depending on degree).
- Gender and number agreement
- Antonyms must match the gender and number of the word in question. However, in SSC GD multiple-choice format, options are typically presented in dictionary form (masculine singular), so this is less critical than in sentence correction questions.
- Synonyms as distractors
- Exam options often include synonyms or related words as distractors. For सुंदर (beautiful), you might see विशाल (large) and आकर्षक (attractive) alongside the correct answer कुरूप (ugly). Eliminate synonyms first.
Cloze Test — English / Hindi · 6 cards
- Context is king
- The correct answer must make sense within the sentence AND fit the overall passage theme. Never choose a word in isolation.
- Grammar compatibility
- Check if the blank requires a noun, verb, adjective or adverb. Match tense, number and voice with surrounding words.
- Logical connectors
- Words like however, therefore, although, moreover signal relationships between ideas. Choose connectors that maintain logical flow.
- Vocabulary range
- Correct options often include synonyms or contextually similar words. Eliminate obvious mismatches first, then decide between close alternatives.
- Passage tone
- Identify whether the passage is formal, informal, positive, negative or neutral. Your word choice should match this tone consistently.
- Sequential reading
- Sometimes later sentences clarify earlier blanks. If stuck on blank 1, move ahead and return after understanding the complete context.
Muhavare evam Lokoktiyan (मुहावरे और लोकोक्तियाँ) — English / Hindi · 2 cards
- Muhavara (मुहावरा)
- is an idiomatic phrase that cannot be used as a standalone sentence. It must be integrated into a sentence structure. Example: "आँखें चुराना" (to avoid eye contact) needs to be used as "वह मुझसे आँखें चुराने लगा।"
- Lokokti (लोकोक्ति)
- is a complete proverbial sentence expressing a moral, observation, or folk wisdom. Example: "जैसा बोओगे, वैसा काटोगे" (As you sow, so shall you reap) stands complete on its own.
Idioms and Phrases — English / Hindi · 6 cards
- Fixed meaning
- An idiom's meaning is conventional, not compositional. "Break the ice" means "start a conversation," not physically breaking ice.
- Cultural expressions
- Many idioms come from historical events, agriculture, or old customs. Knowing the origin helps, but memorizing the meaning is what matters for the exam.
- Contextual fit
- The same idiom can appear in different sentence structures. Recognize its core meaning so you can spot it whether it's the subject, object, or predicate.
- Non-literal language
- Idioms often use metaphor or exaggeration. "It's raining cats and dogs" means heavy rain, not actual animals falling.
- Common in spoken English
- Idioms make language vivid. Examiners test whether you understand everyday conversational phrases used in newspapers, stories, and formal speech.
- Common idioms
- Focus on common idioms rather than obscure expressions you'll never see.
Samas (समास) — English / Hindi · 8 cards
- Samas definition
- The process of joining two or more words (usually two) into one compound word while retaining or modifying the original meaning. The compound is called samast pad (समस्त पद) and its expansion is vigrah (विग्रह).
- Six main types
- Avyayibhav (अव्ययीभाव), Tatpurush (तत्पुरुष), Karmadharay (कर्मधारय), Dvigu (द्विगु), Dvandva (द्वन्द्व), and Bahuvrihi (बहुव्रीहि). Each has distinct rules about which component's meaning dominates or how the parts relate.
- Tatpurush subdivisions
- This is the largest category with six sub-types based on the vibhakti (case marker) used in the vigrah: karma tatpurush (को), karan tatpurush (से/के द्वारा), sampradaan tatpurush (के लिए), apadan tatpurush (से—separation), sambandh tatpurush (का/की/के), and adhikaran tatpurush (में/पर).
- Meaning dominance principle
- In Avyayibhav, the first word dominates. In Tatpurush and its subtypes, the second word dominates. In Dvandva, both words have equal importance. In Bahuvrihi, neither word is primary—the compound refers to a third entity.
- Karmadhara vs. Tatpurush
- Karmadharay is a special Tatpurush where the relation is one of apposition or adjective-noun (e.g., नीलकंठ = नीला है जो कंठ). If there's a case marker in vigrah, it's plain Tatpurush; if it's adjective-noun or noun-noun apposition, it's Karmadharay.
- Dvigu vs. Karmadharay
- Dvigu always begins with a numeral (संख्यावाचक), and the compound denotes a collective group or sum (e.g., त्रिलोक = तीनों लोकों का समाहार). If no numeral, it's not Dvigu.
- Bahuvrihi's uniqueness
- The compound word does not directly mean either component; instead, it describes someone/something by that attribute (e.g., दशानन = दस हैं आनन जिसके, referring to Ravana, not the ten faces themselves).
- Exam strategy
- Learn to identify the vibhakti in vigrah first. This instantly categorises most compounds into Tatpurush subtypes or eliminates Tatpurush altogether. Then check for numerals (Dvigu), equality (Dvandva), or third-entity reference (Bahuvrihi).
Spellings — English / Hindi · 6 cards
- Visual recognition
- Spelling questions rely on recognising the "correct look" of a word rather than sounding it out. Many English words have silent letters or irregular pronunciations.
- Common error zones
- Spelling mistakes often involve double consonants (accommodate vs accomodate), vowel confusion (separate vs seperate), and tricky letter pairs (receive vs recieve).
- Homophones and near-homophones
- Words like stationary/stationery, principal/principle, accept/except sound similar but have distinct spellings and meanings. Examiners test whether you know the difference.
- Silent letters
- Letters like k in "knowledge", b in "doubt", or l in "could" are often dropped incorrectly by candidates. Build awareness of these patterns.
- Foreign-origin words
- English borrows heavily from Latin, French, and Greek. Words like "bureau", "lieutenant", "maintenance" have non-phonetic spellings that must be memorised.
- No partial credit
- In multiple-choice spelling questions, you either spot the error or you don't. There's no room for "close enough". This makes focused practice essential.
Vakya Shuddhi (वाक्य शुद्धि) — English / Hindi · 8 cards
- Ling Shuddhi (लिंग शुद्धि)
- Gender agreement between noun, adjective and verb must match. Masculine nouns take masculine forms; feminine nouns take feminine forms.
- Vachan Shuddhi (वचन शुद्धि)
- Singular and plural agreement must be consistent. Verbs, adjectives and pronouns must agree with the number of the subject.
- Karak Shuddhi (कारक शुद्धि)
- Correct case markers (ने, को, से, में, पर, का, की, के) must be used according to grammatical function and the verb employed.
- Kriya Shuddhi (क्रिया शुद्धि)
- Verb forms must match the subject in gender, number and person. Tense consistency within a sentence is essential.
- Visheshan Shuddhi (विशेषण शुद्धि)
- Adjectives must agree with the nouns they modify in gender and number. Position of adjectives should follow Hindi conventions.
- Sarvanam Shuddhi (सर्वनाम शुद्धि)
- Pronouns must correctly reflect the gender, number and case of the nouns they replace.
- Shabd Chayan (शब्द चयन)
- Using the right word for context; avoiding confusion between similar-sounding or similar-meaning words (like और/अथवा, तथा/एवं).
- Vakya Rachna (वाक्य रचना)
- Proper word order in Hindi typically follows subject-object-verb pattern, though flexibility exists; avoid awkward or ambiguous constructions.
Vyakaran (व्याकरण) — English / Hindi · 8 cards
- Ling (लिंग) — Gender
- Every Hindi noun is either masculine (पुल्लिंग) or feminine (स्त्रीलिंग). Gender affects verb endings, adjectives, and pronoun forms. For example, "लड़का अच्छा है" (masculine) vs "लड़की अच्छी है" (feminine).
- Vachan (वचन) — Number
- Hindi has two numbers — singular (एकवचन) and plural (बहुवचन). Plural forms often change the ending of nouns: "लड़का" becomes "लड़के", "किताब" becomes "किताबें". Verb and adjective forms also change accordingly.
- Karak (कारक) — Case
- Karak shows the relationship between a noun and other words in the sentence. Hindi has eight karaks: कर्ता (nominative), कर्म (accusative), करण (instrumental), सम्प्रदान (dative), अपादान (ablative), सम्बन्ध (genitive), अधिकरण (locative), and सम्बोधन (vocative).
- Kal (काल) — Tense
- Hindi verbs conjugate according to three main tenses: भूतकाल (past), वर्तमान काल (present), and भविष्यत काल (future). Each tense has further subdivisions like simple, continuous, perfect, and perfect continuous forms.
- Agreement Rules
- In Hindi, the verb must agree with the subject in gender and number. When the postposition "ने" is used (in past tense), the verb agrees with the object instead of the subject.
- Postpositions (विभक्ति चिह्न)
- These are markers attached to nouns to indicate case relationships — ने, को, से, में, पर, का/की/के, etc. Their correct usage is crucial for sentence formation.
- Gender Recognition
- Certain endings help identify gender — words ending in आ are usually masculine (लड़का, कमरा), while words ending in ई, इया are usually feminine (लड़की, कुर्सी, चिड़िया). However, exceptions exist (माता, पानी).
- Verb Root and Conjugation
- Hindi verbs have a root form (धातु) like "जा" (go), "खा" (eat), "पढ़" (read). From this root, various tenses and forms are created by adding appropriate suffixes.
Reading Comprehension — English / Hindi · 8 cards
- Main Idea vs. Details
- The main idea is the central message or purpose of the entire passage. Details are specific facts, examples, or supporting points. Questions may ask "What is the passage mainly about?" (main idea) or "According to the passage, when did X happen?" (detail).
- Inference Questions
- These ask what is implied but not directly stated. Look for clues in tone, examples, or the author's word choice. An inference must be supported by passage evidence, not your personal opinion or general knowledge.
- Vocabulary in Context
- A word may have multiple meanings; the question tests whether you understand its meaning as used in the passage. Read the sentence around the word, substitute the options, and pick the one that fits the context best.
- Tone and Purpose
- Tone refers to the author's attitude (neutral, critical, appreciative, sarcastic). Purpose is why the author wrote the passage (to inform, persuade, entertain, criticize).
- True/False or "According to the Passage"
- These require you to verify a statement against passage text. If even one part of the statement is unsupported or contradicted, mark it false.
- Elimination Strategy
- RC is ideal for the process of elimination. Cross out options that are factually wrong, too extreme ("always," "never"), or bring in outside information not mentioned in the passage.
- Paraphrasing
- Correct answers often paraphrase passage sentences rather than copy them verbatim. Be alert to synonyms and sentence restructuring.
- Refer Back for Every Question
- Do not rely on memory. Skim the relevant paragraph or sentence again for each question to confirm your answer.
Karyalayi Hindi (कार्यालयी हिंदी) — English / Hindi · 7 cards
- Rajbhasha (राजभाषा)
- Hindi is the official language of the Union of India as per Article 343 of the Constitution. Government offices use standardized Hindi terminology for consistency across departments.
- Formal vs Informal Hindi
- Office Hindi avoids colloquial expressions and uses specific technical terms. For example, "अवगत कराना" (to inform) replaces casual "बताना", and "कृपया" (kindly) replaces "मेहरबानी करके".
- Standard terminology
- Each English administrative term has an officially recognized Hindi equivalent established by the Commission for Scientific and Technical Terminology (CSTT). Using correct terms maintains professional standards.
- Letter structure
- Official letters follow a fixed format including संदर्भ संख्या (reference number), दिनांक (date), प्रेषक (sender), प्रेषिती (addressee), विषय (subject), महोदय (salutation), सादर (respectfully) and closing phrases.
- Note-making (टिप्पणी)
- Internal office notes use specific phrases for recommendations, approvals and forwarding files. These follow hierarchical communication patterns from junior to senior officers.
- File movement terms
- Government files move with specific notations like "कृपया देखें" (please see), "आवश्यक कार्यवाही करें" (take necessary action), "अनुमोदनार्थ" (for approval).
- Formal pronouns and respect
- Official Hindi uses आप (formal you), महोदय/महोदया (Sir/Madam) and avoiding तू/तुम maintains professional decorum.