Best CDS Coaching Institutes & Classes in Shopian | CDS Online PDF Notes & Video Classes

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The Combined Defence Services Examination (abbreviated as CDS Exam) is conducted by the Union Public Service Commission for recruitment of Commissioned Officers in the Indian Military Academy, Officers Training Academy, Indian Naval Academy and Indian Air Force Academy. The Notification for the examination is usually released in the months of October and June, and the examinations are conducted in February and November respectively. Only unmarried graduates are eligible to sit for the exam. Examination is conducted twice a year. Successful candidates are admitted into the respective Academies after an interview conducted by the Services Selection Board (SSB).

Age Limit

Indian Military Academy	19–24 years
Air Force Academy	19–24 years
Naval Academy	19–24 years
Officers Training Academy	19–25 years

Educational Qualifications

CDS Exam Educational Qualifications is given below.

For I.M.A. and Officers’ Training Academy	Degree from a recognized University or equivalent
For Indian Naval Academy	Degree in Engineering from a recognized University or equivalent
For Air Force Academy	Degree of a recognized University (with Physics and Mathematics at 10+2 level) or Bachelor of Engineering

CDS Exam Pattern

Stages of exam	Written exam and SSB Interview
Mode of exam	Offline / Pen and paper based
Subjects	1- English 120 questions 2- General Knowledge 120 questions 3- Elementary Mathematics 100 questions
Exam duration	2 hours for each paper
Number of questions	340 MCQs for – IMA, INA and AFA 240 MCQs for – OTA
Language of paper	English & Hindi

CDS Exam Pattern for IMA, INA, AFA

Subject	Duration	Maximum marks
English	2 hours	100
General Knowledge	2 hours	100
Elementary Mathematics	2 hours	100

CDS Exam Pattern for OTA

Subject		Duration	Maximum marks
English		2 hours	100
General Knowledge		2 hours	100
CDS Syllabus
Sections		Topics
English		* Spotting Errors Questions * Sentence Arrangement Questions * Synonyms & Antonyms * Selecting Words * Ordering of Sentence * Comprehension Questions * Ordering of words in a sentence * Fill in the blanks questions * Idioms and Phrases
General Awareness (GK)		* Economics * Physics * Current Affairs * Politics * Chemistry * Sociology * History * Defence related Award * Geography * Environment * Sport * Biology * Cultural * Book * Statement * true/false
Elementary Mathematics	Algebra	* Basic Operations * simple factors * Remainder Theorem * H.C.F. * L.C.M. * Theory of polynomials * solutions of quadratic equations * relation between its roots and coefficients (Only real roots to be considered) * Simultaneous linear equations in two unknowns—analytical and graphical solutions * Simultaneous linear in equations in two variables and their solutions * Practical problems leading to two simultaneous linear equations or inequations in two variables or quadratic equations in one variable & their solutions * Set language and set notation * Rational expressions and conditional identities * Laws of indices
	Arithmetic	* Number System: Natural numbers, Integers, Rational and Real numbers. * Fundamental operations: addition, substraction, multiplication, division, Square roots, Decimal fractions * Unitary method * time and distance * time and work * percentages * applications to simple and compound interest * profit and loss * ratio and proportion * variation * Elementary Number Theory: Division algorithm * Prime and composite numbers * Tests of divisibility by 2, 3, 4, 5, 9 and 11 * Multiples and factors. Factorization Theorem * H.C.F. and L.C.M. * Euclidean algorithm * Logarithms to base 10 * laws of logarithms * use of logarithmic tables
	Trigonometry	* Sine ×, cosine ×, Tangent × when 0° < × < 90° * Values of sin ×, cos × and tan ×, for ×= 0°, 30°, 45°, 60° and 90° * Simple trigonometric identities * Use of trigonometric tables * Simple cases of heights and distances
	Geometry	* Lines and angles * Plane and plane figures * Theorems on Properties of angles at a point * Parallel lines * Sides and angles of a triangle * Congruency of triangles * Similar triangles * Concurrence of medians and altitudes * Properties of angles * sides and diagonals of a Parallelogram * rectangle and square * Circles and its properties including tangents and normals * Loci
	Mensuration	* Areas of squares * rectangles * parallelograms * triangle and circle * Areas of figures which can be split up into these figures (Field Book) * Surface area and volume of cuboids * lateral surface and volume of right circular cones and cylinders * surface area and volume of spheres
	Statistics	* Collection and tabulation of statistical data * Graphical representation frequency polygons * histograms * bar charts * pie charts etc * Measures of central tendency