Question Library
Browse our collection of questions across various subjects
Mathematics
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In any discrete series (when all values are not same), if x represents mean deviation about mean and y represents…
NDA Mathematics 2018
NDA 2018
General Ability
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The coefficient of areal expansion of a material is 1.6 × 10⁻⁵ K⁻¹. Which one of the following gives the…
NDA General Ability 2018
NDA 2018
Mathematics
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Which one of the following can be obtained from an ogive?
NDA Mathematics 2018
NDA 2018
General Ability
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A ball is released from rest and rolls down an inclined plane, as shown in the following figure, requiring 4…
NDA General Ability 2018
NDA 2018
Mathematics
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Three dice having digits 1, 2, 3, 4, 5 and 6 on their faces are marked I, II and III…
NDA Mathematics 2018
NDA 2018
Mathematics
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An analysis of monthly wages paid to the workers in two firms A and B belonging to the same industry…
NDA Mathematics 2018
NDA 2018
General Ability
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If the focal length of a convex lens is 50 cm, which one of the following is its power?
NDA General Ability 2018
NDA 2018
Mathematics
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Two integers x and y are chosen with replacement from the set {0, 1, 2, …, 10}. The probability that…
NDA Mathematics 2018
NDA 2018
General Ability
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Consider the following velocity and time graph: Which one of the following is the value of average acceleration from 8…
NDA General Ability 2018
NDA 2018
Mathematics
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The set of bivariate observations (x1, y1), (x2, y2), …, (xn, yn) are such that all the values are distinct…
NDA Mathematics 2018
NDA 2018
General Ability
Easy
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The wavelength of X-rays is of the order of
NDA General Ability 2018
NDA 2018
Mathematics
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If the regression coefficient of Y on X is –6, and the correlation coefficient between X and Y is –1/2,…
NDA Mathematics 2018
NDA 2018
General Ability
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Which one of the following statements about the law of conservation of mass is correct?
NDA General Ability 2018
NDA 2018
Mathematics
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If the probability of simultaneous occurrence of two events A and B is p and the probability that exactly one…
NDA Mathematics 2018
NDA 2018
General Ability
Easy
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Which one of the following is the chemical formula of gypsum?
NDA General Ability 2018
NDA 2018
Mathematics
Easy
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If xi > 0, yi > 0 (i = 1, 2, 3, …, n) are the values of two variables…
NDA Mathematics 2018
NDA 2018
General Ability
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Which one of the following is not used as fertilizer?
NDA General Ability 2018
NDA 2018
Mathematics
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The variance of 25 observations is 4. If 2 is added to each observation, then the new variance of the…
NDA Mathematics 2018
NDA 2018
General Ability
Easy
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Which one of the following is an oxidation-reduction reaction?
NDA General Ability 2018
NDA 2018
Mathematics
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Consider the following statements: 1. If 10 is added to each entry on a list, then the average increases by…
NDA Mathematics 2018
NDA 2018