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The National Defence Academy entrance exam is conducted by the UPSC, twice a year. Comprehensive topic-wise preparation is available, separately under Mathematics, Science, English, GK, apart from Mock and Sectional tests.


This thread is dedicated to preparation for GK section of NDA.

Posted 8 days ago

How many hill stations are there in India

This thread is dedicated to preparation for Mathematics section of NDA. You may share questions related to topics like Integral Calculus, Complex Numbers, Matrices and Determinants, Vectors, 3-D Geometry, Sequence/Series, Trigonometry, Co-Ordinate Geometry, Exponential and Logarithmic Series, Modern Algebra, Statistics, Differential Calculus, Functions and Equations, Permutation and Combination, Probability etc.

Posted 10 days ago

If z1 and z2 are perpendicular to each other, then  is

This thread is dedicated to discuss general NDA queries

Wasim Raza Tadamari Sheik
Posted 27 days ago

How many women were elected to the 16th Lok Sabha consisting of 543 members?

This thread is dedicated to preparation for Science section of NDA. You may share questions from subjects like Physical Chemistry, Organic Chemistry, Inorganic Chemistry, Physics of Semiconductors, Nuclear Physics, Atomic Physics, Wave Optics, Ray Optics, Electromagnetic Induction, Electrodynamics, Electrostatics, Thermodynamics, Heat, Sound, Waves, Mechanics etc.

Posted 6 months ago

The gas which makes the most stable combination with RBC haemoglobin is

This thread is dedicated to preparation for Objective English section of NDA. You may post questions related to topics like Error identification, Reading Comprehension, Syllogisms, Logical Reasoning, Sentence Completion, Verbal Analogy, Odd Word Out, Paragraph Completion, Jumbled Sentence, Sentence Completion, Antonyms, Synonyms etc.

Arsh Singh
Posted 12 months ago

Directions: The following sentence tests your ability to recognise grammar and usage errors. The sentence contains either a single error or no error at all. The sentence does not contain more than one error. The error, if there is one, is underlined and lettered. If the sentence contains an error, select the underlined part that must be changed to make the sentence correct. If the sentence is correct, select choice (E). In choosing the answer, follow the requirements of standard written English.

(A) It is wise to (B) marry away the girls (C) before they reach (D) the age of puberty. (E) No error

Manish Jaiswal
Posted 2 years ago

If the sum of two numbers be multiplied by each number separately, the products so obtained are 247 and 114. The sum of the numbers is