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NDA Exam Pattern 2021 for SSB Interview

The SSB Interview is divided into two stages. Candidates qualifying the Stage 1 are called for the Stage 2 exam. Stage 1 of the SSB Interview comprises Officer Intelligence Rating (OIR) tests and Picture Perception and Description Test (PP&DT). Stage 2 comprises Group Testing Officer Tasks, Psychology Tests and the Conference. This stage carries a total of 900 marks. Candidates can check the pattern of SSB Interview.

Stages	Tests
Stage 1	Screening Test	· Verbal and non-verbal tests. · PPDT
Stage 2	Psychological Test	· Thematic Apperception Test (TAT) · Word Association Test (WAT) · Situation Reaction Test (SRT) · Self Description Test (SD)
	Group Testing Officers Test	· GD · GPE · PGT · HGT · IOT · Command Task · Snake race/Group Obstacle Race · Individual lecture · FGT
	Personal Interview	–
	Conference	–

NDA Syllabus 2021 for Mathematics

According to NDA exam pattern, this section carries a total of 120 questions. The total marks allotted to this section of NDA exam are 300. For the correct answer, 2.5 marks will be awarded. For wrong answer, 0.85 marks will be deducted. The standard of NDA question paper for Mathematics section is of Class 11 and 12 levels. Candidates can clear their concept of Maths by referring to the NCERT books of Class 11 and 12. NDA syllabus 2020 for Mathematics is given below.

Algebra	Matrices and Determinants
Trigonometry	Analytical Geometry of Two and Three Dimensions
Differential Calculus	Integral Calculus and Differential Equations
Vector Algebra	Statistics and Probability

Topic-wise distribution of questions in Math

Topic	Questions
Calculus	20-25
Quadratic equation	20-15
Matrices & Determinants	30
Probability	10
Trigonometry	30
Complex number	10-15

The detailed NDA Syllabus 2021 for Math is tabulated below:

1. ALEGBRA
Concept of set, operations on sets, Venn diagrams. De Morgan laws, Cartesian product, relation, equivalence relation.

Representation of real numbers on a line. Complex numbers—basic properties, modulus, argument, cube roots of unity. Binary system of numbers. Conversion of a number in decimal system to binary system and vice-versa. Arithmetic, 19 Geometric and Harmonic progressions. Quadratic equations with real coefficients. Solution of linear inequations of two variables by graphs. Permutation and Combination. Binomial theorem and its applications. Logarithms and their applications

2. MATRICES AND DETERMINANTS
Types of matrices, operations on matrices. Determinant of a matrix, basic properties of determinants. Adjoint and inverse of a square matrix, Applications-Solution of a system of linear equations in two or three unknowns by Cramer’s rule and by Matrix Method.

3. TRIGONOMETRY
Angles and their measures in degrees and in radians. Trigonometrical ratios. Trigonometric identities Sum and difference formulae. Multiple and Sub-multiple angles. Inverse trigonometric functions. Applications-Height and distance, properties of triangles.

4. ANALYTICAL GEOMETRY OF TWO AND THREE DIMENSIONS
Rectangular Cartesian Coordinate system. Distance formula. Equation of a line in various forms. Angle between two lines. Distance of a point from a line. Equation of a circle in standard and in general form. Standard forms of parabola, ellipse and hyperbola. Eccentricity and axis of a conic.

Point in a three dimensional space, distance between two points. Direction Cosines and direction ratios. Equation two points. Direction Cosines and direction ratios. Equation of a plane and a line in various forms. Angle between two lines and angle between two planes. Equation of a sphere.

5. DIFFERENTIAL CALCULUS
Concept of a real valued function–domain, range and graph of a function. Composite functions, one to one, onto and inverse functions. Notion of limit, Standard limits—examples. Continuity of functions—examples, algebraic operations on continuous functions. Derivative of function at a point, geometrical and physical interpretation of a derivative—applications.

Derivatives of sum, product and quotient of functions, derivative of a function with respect to another function, derivative of a composite function. Second order derivatives. Increasing and decreasing functions. Application of derivatives in problems of maxima and minima.

6. INTEGRAL CALCULUS AND DIFFERENTIAL EQUATIONS
Integration as inverse of differentiation, integration by substitution and by parts, standard integrals involving algebraic expressions, trigonometric, exponential and hyperbolic functions. 20 Evaluation of definite integrals—determination of areas of plane regions bounded by curves—applications.

Definition of order and degree of a differential equation, formation of a differential equation by examples. General and particular solution of a differential equations, solution of first order and first degree differential equations of various types—examples. Application in problems of growth and decay.

7. VECTOR ALGEBRA
Vectors in two and three dimensions, magnitude and direction of a vector. Unit and null vectors, addition of vectors, scalar multiplication of a vector, scalar product or dot product of two vectors. Vector product or cross product of two vectors. Applications—work done by a force and moment of a force and in geometrical problems

8. STATISTICS AND PROBABILITY
Statistics : Classification of data, Frequency distribution, cumulative frequency distribution—examples. Graphical representation—Histogram, Pie Chart, frequency polygon— examples. Measures of Central tendency—Mean, median and mode. Variance and standard deviation—determination and comparison. Correlation and regression.

Probability : Random experiment, outcomes and associated sample space, events, mutually exclusive and exhaustive events, impossible and certain events. Union and Intersection of events. Complementary, elementary and composite events. Definition of probability—classical and statistical—examples. Elementary theorems on probability—simple problems. Conditional probability, Bayes’ theorem—simple problems. Random variable as function on a sample space. Binomial distribution, examples of random experiments giving rise to Binominal distribution.

NDA Syllabus 2021 for GAT

The GAT syllabus of NDA is divided into two parts. Part A comprises questions from English while Part B carries questions from General Knowledge. There will be total of 150 questions. Total marks for this section are 600. Each question carries 4 marks while 1.33 marks will be deducted for wrong answer.

English: The question paper in English is designed to test the candidate’s understanding of English. The syllabus covers various aspects such as Grammar and usage, vocabulary, comprehension and cohesion.

Physics
Physical Properties and States of Matter	Modes of transference of Heat
Mass	Sound waves and their properties
Weight	Simple musical instruments
Volume	Rectilinear propagation of Light
Density and Specific Gravity	Reflection and refraction
Principle of Archimedes	Spherical mirrors and Lenses
Pressure Barometer	Human Eye
Motion of objects	Natural and Artificial Magnets
Velocity and Acceleration	Properties of a Magnet
Newton’s Laws of Motion	Earth as a Magnet
Force and Momentum	Static and Current Electricity
Parallelogram of Forces	Conductors and Non-conductors
Stability and Equilibrium of bodies	Ohm’s Law
Gravitation	Simple Electrical Circuits
Elementary ideas of work	Heating, Lighting and Magnetic effects of Current
Power and Energy	Measurement of Electrical Power
Effects of Heat	Primary and Secondary Cells
Measurement of Temperature and Heat	Use of X-Rays
	General Principles in the working of the following: Simple Pendulum, Simple Pulleys, Siphon, Levers, Balloon, Pumps, Hydrometer, Pressure Cooker, Thermos Flask, Gramophone, Telegraphs, Telephone, Periscope, Telescope, Microscope, Mariner’s Compass; Lightning Conductors, Safety Fuses.
Chemistry
Preparation and Properties of Hydrogen, Oxygen, Nitrogen and Carbon Dioxide, Oxidation and Reduction. Acids, bases and salts. Carbon— different forms	Physical and Chemical Changes
Fertilizers—Natural and Artificial	Elements
Material used in the preparation of substances like Soap, Glass, Ink, Paper, Cement, Paints, Safety Matches and Gunpowder	Mixtures and Compounds
Elementary ideas about the structure of Atom	Symbols, Formulae and simple Chemical Equation
Atomic Equivalent and Molecular Weights	Law of Chemical Combination (excluding problems)
Valency	Properties of Air and Water
General Science
Common Epidemics, their causes and prevention	Difference between the living and non-living
Food—Source of Energy for man	Basis of Life—Cells, Protoplasms and Tissues
Constituents of food	Growth and Reproduction in Plants and Animals
Balanced Diet	Elementary knowledge of Human Body and its important organs
The Solar System—Meteors and Comets, Eclipses. Achievements of Eminent Scientists
History
Forces shaping the modern world; Renaissance	A broad survey of Indian History, with emphasis on Culture and Civilisation
Exploration and Discovery; War of American Independence, French Revolution, Industrial Revolution and Russian Revolution	Freedom Movement in India
Impact of Science and Technology on Society	Elementary study of Indian Constitution and Administration
Concept of one World	Elementary knowledge of Five Year Plans of India
United Nations, Panchsheel, Democracy, Socialism and Communism	Panchayati Raj
Role of India in the present world	Co-operatives and Community Development
A broad survey of Indian History, with emphasis on Culture and Civilisation	Bhoodan, Sarvodaya, National Integration and Welfare State
Basic Teachings of Mahatma Gandhi	–
Geography
The Earth, its shape and size	Ocean Currents and Tides Atmosphere and its composition
Latitudes and Longitudes	Temperature and Atmospheric Pressure, Planetary Winds, Cyclones and Anticyclones; Humidity; Condensation and Precipitation
Concept of time	Types of Climate
International Date Line	Major Natural regions of the World
Movements of Earth and their effects	Regional Geography of India—Climate, Natural vegetation. Mineral and Power resources; location and distribution of agricultural and Industrial activities
Origin of Earth. Rocks and their classification	Important Sea ports and main sea, land and air routes of India
Weathering—Mechanical and Chemical, Earthquakes and Volcanoes	Main items of Imports and Exports of India
Current Affairs
Knowledge of Important events that have happened in India in the recent years	Prominent personalities—both Indian and International including those connected with cultural activities and sports
Current important world events	–

Topic-wise distribution of questions in GAT

English

Topic	No. of Questions	No. of Marks
Spotting Errors	5	20
Comprehension	6	24
Selecting Words	10	40
Ordering of Words in a Sentence	9	36
Sentence Improvement	10	40
Antonyms	5	20
Synonyms	5	20
Total	50	200

General Knowledge

Topic	No. of Questions	No. of Marks
Physics	23	92
Chemistry	16	64
General Science	11	44
History & Freedom Movement	16	64
Geography	17	68
Current Events	17	68
Total	100	400

NDA General Ability Test Syllabus 2021

NDA Written Exam Paper II has two sections the syllabus of which is tabulated below:

PART A: English
The question paper in English will be designed to test the candidate’s understanding of English and the use of words. The syllabus covers various aspects like Grammar and usage, vocabulary, comprehension, and cohesion in extended text to test the candidate’s proficiency in English.

PART B: General Knowledge
The question paper on General Knowledge will broadly cover the subjects: Physics, Chemistry, General Science, Social Studies, Geography and Current Events.
Section A: Physics
1. Physical Properties and States of Matter, Mass, Weight, Volume, Density and Specific Gravity, Principle of Archimedes, Pressure Barometer.

2. Motion of objects, Velocity and Acceleration, Newton’s Laws of Motion, Force and Momentum, Parallelogram of Forces, Stability and Equilibrium of bodies, Gravitation, elementary ideas of work, Power and Energy. Effects of Heat, Measurement of Temperature and Heat, change of State and Latent Heat, Modes of transference of Heat. Sound waves and their properties, Simple musical instruments. Rectilinear propagation of Light, Reflection and refraction. Spherical mirrors and Lenses, Human Eye.

3. Natural and Artificial Magnets, Properties of a Magnet, Earth as a Magnet.

4. Static and Current Electricity, conductors and Nonconductors, Ohm’s Law, Simple Electrical Circuits, Heating, Lighting and Magnetic effects of Current, Measurement of Electrical Power, Primary and Secondary Cells, Use of X-Rays. General Principles in the working of the following:

5. Simple Pendulum, Simple Pulleys, Siphon, Levers, Balloon, Pumps, Hydrometer, Pressure Cooker, Thermos Flask, Gramophone, Telegraphs, Telephone, Periscope, Telescope, Microscope, Mariner’s Compass; Lightening Conductors, Safety Fuses.

Section B: Chemistry
1. Physical and Chemical changes. Elements, Mixtures and Compounds, Symbols, Formulae and simple Chemical Equations, Law of Chemical Combination (excluding problems). Properties of Air and Water.

2. Preparation and Properties of Hydrogen, Oxygen, Nitrogen and Carbondioxide, Oxidation and Reduction. Acids, bases and salts. Carbon—different forms. Fertilizers—Natural and Artificial. Material used in the preparation of substances like Soap, Glass, Ink, Paper, Cement, Paints, Safety Matches and Gun Powder. Elementary ideas about the structure of Atom, Atomic Equivalent and Molecular Weights, Valency

Section C: General Science
1. Difference between the living and non-living. Basis of Life—Cells, Protoplasms and Tissues. Growth and Reproduction in Plants and Animals.

2. Elementary knowledge of Human Body and its important organs. Common Epidemics, their causes and prevention.

3. Food—Source of Energy for man. Constituents of food, Balanced Diet. The Solar System—Meteors and Comets, Eclipses. Achievements of Eminent Scientists.

Section D: History, Freedom Movement
1. A broad survey of Indian History, with emphasis on Culture and Civilization.

2. Freedom Movement in India. Elementary study of Indian Constitution and Administration. Elementary knowledge of Five Year Plans of India. Panchayati Raj, Co-operatives and Community Development. Bhoodan, Sarvodaya, National Integration and Welfare State, Basic Teachings of Mahatma Gandhi.

3. Forces shaping the modern world; Renaissance, Exploration and Discovery; War of American Independence. French Revolution, Industrial Revolution and Russian Revolution. Impact of Science and Technology on Society. Concept of one World, United Nations, Panchsheel, Democracy, Socialism and Communism. Role of India in the present world.

Section E: Geography
1. The Earth, its shape and size. Latitudes and Longitudes, Concept of time. International Date Line. Movements of Earth and their effects. Origin of Earth. Rocks and their classification; Weathering—Mechanical and Chemical, Earthquakes and Volcanoes. Ocean Currents and Tides Atmosphere and its composition; Temperature and Atmospheric Pressure, Planetary Winds, Cyclones and Anti-cyclones; Humidity; Condensation and Precipitation; Types of Climate, Major Natural regions of the World. Regional Geography of India—Climate, Natural vegetation. Mineral and Power resources; location and distribution of agricultural and Industrial activities. Important Sea ports and main sea, land and air routes of India. Main items of Imports and Exports of India.

Section F: Current Events
Knowledge of Important events that have happened in India in the recent years. Current important world events. Prominent personalities—both Indian and International including those connected with cultural activities and sports.