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Prelims

UPSC Prelims Questions

Practice UPSC Prelims MCQs by subject and year. Free questions with explanations for focused revision.

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Q.10333·Miscellaneous·2015·Easy

Had she been hungry, she would have devoured the whole lot of it.

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Q.10334·Miscellaneous·2015·Easy

He is likely to win the elections by the sweeping majority.

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Q.10335·Miscellaneous·2015·Easy

(P) shaking his fist at the sky (Q) clambering over the ruins (R) and collapsing with a howl of revolt (S) of his house and factory The proper sequence should be:

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Q.10336·Miscellaneous·2015·Easy

(P) to depend on his own efforts (Q) always advised his son (R) who was a self-made man (S) His sure success in life The proper sequence should be:

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Q.10337·Miscellaneous·2015·Easy

Until you don’t finish the work, you won’t be given leave.

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Q.10338·Miscellaneous·2015·Easy

The line 3x+4y-24=0 intersects the x-axis at A and y-axis at B. Then the circumcentre of the triangle OAB where O is the origin is

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Q.10339·Miscellaneous·2015·Easy

(P) when they talked at length (Q) about their problems (R) who was very competent in his profession (S) The doctor did not like the behavior of the patients The proper sequence should be:

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Q.10340·Miscellaneous·2015·Easy

(P) glancing occasionally (Q) peering through the window (R) at the figure of the old woman (S) until he was chilled with the cold The proper sequence should be:

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Q.10341·Miscellaneous·2015·Easy

The number of ways in which a cricket team of 11 players be chosen out of a batch of 15 players so that the captain of the team is always included, is

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Q.10342·Miscellaneous·2015·Easy

Two poles are 10 m and 20 m high. The line joining their tops makes an angle of 15° with the horizontal. The distance between the poles is approximately equal to

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Q.10343·Miscellaneous·2015·Easy

If A = [1 1 -1; 2 -3 4; 3 -2 3] and B = [-1 -2 -1; 6 12 6; 5 10 5], then which of the following is/are correct ? 1. A and B commute. 2. AB is a null matrix. Select the correct answer using the code given below :

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Q.10344·Miscellaneous·2015·Easy

Consider the following : 1. sin⁻¹(4/5) + sin⁻¹(3/5) = π/2 2. tan⁻¹√3 + tan⁻¹1 = -tan⁻¹(2+√3) Which of the above is/are correct ?

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Q.10345·Miscellaneous·2015·Easy

If A is an orthogonal matrix of order 3 and B = [1 2 3; -3 0 2; 2 5 0], then which of the following is/are correct ? 1. |AB| = ±47 2. AB = BA Select the correct answer using the code given below :

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Q.10346·Miscellaneous·2015·Easy

If a, b, c are real numbers, then the value of the determinant | -a -b -c b+c | | -b b -c a+c | | -c -a b a+b | is

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Q.10347·Miscellaneous·2015·Easy

A vertical tower standing on a levelled field is mounted with a vertical flag staff of length 3 m. From a point on the field, the angles of elevation of the bottom and tip of the flag staff are 30° and 45° respectively. Which one of the following gives the best approximation to the height of the tower ?

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Q.10348·Miscellaneous·2015·Easy

The average of the coefficients of the two middle terms in the expansion is

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Q.10349·Miscellaneous·2015·Easy

The sum of the coefficients of all the terms in the expansion is

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Q.10350·Miscellaneous·2015·Easy

The rth term of an A.P. is (3+n)/4, then the sum of first 105 terms is

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