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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.5581·Miscellaneous·2020·Easy

Suppose a region is formed by removing a sector of 20° from a circular region of radius 30 feet. What is the area of this new region?

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Q.5582·Miscellaneous·2020·Easy

The length and breadth of a rectangle are in the ratio 4 : 3. Then what is the ratio of the area of the triangle formed by the parts of the diagonals with a long side to the area of the triangle formed by the parts of diagonals with a short side?

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Q.5583·Miscellaneous·2020·Easy

Noticing the change in the behaviour of the officer, the cadets returned to their position.

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Q.5584·Miscellaneous·2020·Easy

What is (sec x - tan x)/(sec x + tan x) equal to?

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Q.5585·Miscellaneous·2020·Easy

Which one of the following is the correct sequence of events during sexual reproduction in plants ?

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Q.5586·Miscellaneous·2020·Easy

The village chief said to the villagers, “All of us need to adopt new regulations. We will protect our Earth forever.”

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Q.5587·Miscellaneous·2020·Easy

Which one of the following is not an epidemic disease ?

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Q.5588·Miscellaneous·2020·Easy

Which is the correct combination of the given two simple sentences using 'If' clause? Minchi should have worked hard. She would have cleared the test.

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Q.5589·Miscellaneous·2020·Easy

The unit of the force constant k of a spring is

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Q.5590·Miscellaneous·2020·Easy

Which one of the following types of radiation has the shortest wavelength ?

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Q.5591·Miscellaneous·2020·Easy

In a periscope, the two plane mirrors are kept

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Q.5592·Miscellaneous·2020·Easy

Ravi was declared as the winner in the tie because he had hit the most number of fours and sixes.

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Q.5593·Miscellaneous·2020·Easy

What is the area of the largest square plate cut from a circular disk of radius one unit?

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Q.5594·Miscellaneous·2020·Easy

Which one of the following is the correct statement combining the two statements using ‘though’? He has been trying his level best to win. He could not succeed.

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Q.5595·Miscellaneous·2020·Easy

A square and a rectangle have equal areas. If one side of the rectangle is of length numerically equal to the square of the length of the side of the square then the other side of the rectangle is

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Q.5596·Miscellaneous·2020·Easy

Out of 4 identical balls of radius r, 3 balls are placed on a plane such that each ball touches the other two balls. The 4th ball is placed on them such that this ball touches all the three balls. What is the distance of centre of 4th ball from the plane?

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Q.5597·Miscellaneous·2020·Easy

He has offered her another chance.

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Q.5598·Miscellaneous·2020·Easy

Which one of the following alternatives has the correct spelling?

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