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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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  2. /Prelims Questions
Q.8137·Miscellaneous·2017·Easy

Which one of the following characteristics does NOT describe the Khilafat movement?

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Q.8138·Miscellaneous·2017·Easy

What is the value of tan 18°?

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Q.8139·Miscellaneous·2017·Easy

If a vertex of a triangle is (1, 1) and the midpoints of two sides of the triangle through this vertex are (-1, 2) and (3, 2), then the centroid of the triangle is

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Q.8140·Miscellaneous·2017·Easy

If the three consecutive vertices of a parallelogram are (-2, -1), (1, 0) and (4, 3), then what are the coordinates of the fourth vertex?

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Q.8141·Miscellaneous·2017·Easy

What is the order of [a h c] [x] [x y z] [h b f] [y] ? [g f c] [z]

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Q.8142·Miscellaneous·2017·Easy

Consider the set A of all matrices of order 3×3 with entries 0 or 1 only. Let B be the subset of A consisting of all matrices whose determinant is 1. Let C be the subset of A consisting of all matrices whose determinant is -1. Then which one of the following is correct?

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Q.8143·Miscellaneous·2017·Easy

f | x y 0 | = 0, then which one of the following is correct? | 0 x y | | y 0 x |

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Q.8144·Miscellaneous·2017·Easy

If sin A = 3/5, where 450° < A < 540°, then cos(A/2) is equal to

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Q.8145·Miscellaneous·2017·Easy

Consider the following for triangle ABC: 1.sin(B + C) = cos(A/2) 2.tan((B + C)/2) = cot(A/2) 3.sin(B + C) = cos A 4.tan(B + C) = -cot A Which of the above are correct?

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Q.8146·Miscellaneous·2017·Easy

The value of [C(7, 0) + C(7, 1)] + [C(7, 1) + C(7, 2)] + ... + [C(7, 6) + C(7, 7)] is

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Q.8147·Miscellaneous·2017·Easy

Molecules of which of the following has cage like structure ? 1.Diamond 2.Graphite 3.Fullerenes Select the correct answer using the code given below :

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Q.8148·Miscellaneous·2017·Easy

The speed of a car travelling on a straight road is listed below at successive intervals of 1 s: Time (s) 0 1 2 3 4 Speed (m/s) 0 2 4 6 8 Which of the following is/are correct? The car travels 1.with a uniform acceleration of 2 m/s². 2.16 m in 4 s. 3.with an average speed of 4 m/s. Select the correct answer using the code given below :

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Q.8149·Miscellaneous·2017·Easy

The speed of a body that has Mach number more than 1 is

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Q.8150·Miscellaneous·2017·Easy

Rutherford's alpha-particle scattering experiment was responsible for the discovery of

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Q.8151·Miscellaneous·2017·Easy

Which one of the following elements is least reactive with water ?

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Q.8152·Miscellaneous·2017·Easy

Glass is a

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Q.8153·Miscellaneous·2017·Easy

Cell wall of any fungus is different from plants in having

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Q.8154·Miscellaneous·2017·Easy

The sum of the first n terms of the series 1/2 + 3/4 + 7/8 + 15/16 + ... is equal to

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