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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.13411·Miscellaneous·2013·Easy

The length, breadth and height of a box are respectively 14 m, 12 m and 13 m. The length of the greatest rod that can be put in it is  

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Q.13412·Miscellaneous·2013·Easy

Each side of an equilateral triangle is 6 cm. Its altitude is

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Q.13413·Miscellaneous·2013·Easy

What is the quantity of cloth required to roll up to form a right circular tent whose base is of radius 12 m and height 5 m?

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Q.13414·Miscellaneous·2013·Easy

A swimming pool 70 m long, 44 m wide and 3 m deep is filled by water flowing from a pipe at the rate of 30,800 cm³ per second. The time taken to fill the swimming pool is

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Q.13415·Miscellaneous·2013·Easy

If the arms of one angle are respectively parallel to the arms of another angle, then the two angles are

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Q.13416·Miscellaneous·2013·Easy

There are 45 male and 15 female employees in an office. If the mean salary of the 60 employees is ₹4,800 and the mean salary of the male employees is ₹5,000, then the mean salary of the female employee is

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Q.13417·Miscellaneous·2013·Easy

Pipe A can fill a tank in 10 minutes and pipe B can empty it in 15 minutes. If both the pipes are opened in an empty tank, the time taken to make it full is

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Q.13418·Miscellaneous·2013·Easy

ABCD is a trapezium with parallel sides AB = 2 cm and DC = 3 cm. E and F are the mid-points of the non-parallel sides. The ratio of area of ABFE to area of EFCD is

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Q.13419·Miscellaneous·2013·Easy

In the figure given above, PQRS is a parallelogram. If AP, AQ, CR, CS are bisectors of ∠P, ∠Q, ∠R and ∠S respectively, then ABCD is a

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Q.13420·Miscellaneous·2013·Easy

In the figure given above, the area of rectangle ABCD is 100 square cm, O is any point on AB and CD = 20 cm. Then the area of triangle COD is

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Q.13421·Miscellaneous·2013·Easy

ABC is a right-angled triangle such that AB = a, BC = a and CA = a + b. D is a point on BC such that BD ~ AB. The ratio of BD : DC for any value of a and b is given by

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Q.13422·Miscellaneous·2013·Easy

Consider a circle with centre at O and radius r. Points A and B lie on its circumference and a point M lies outside of it such that M, A and O lie on the same straight line. Then the ratio of MA to MB is

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Q.13423·Miscellaneous·2013·Easy

In the figure given above, ABCD is a trapezium. EF is parallel to AD and BC. Angle y is equal to

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Q.13424·Miscellaneous·2013·Easy

Consider the following statements : 1. The tangent of a circle is a line that meets the circle in one and only one point. 2. The tangent of a circle at the end point of the diameter is perpendicular to the diameter. Which of the above statements is/are correct ?

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Q.13425·Miscellaneous·2013·Easy

The mean of 7 observations is 7. If each observation is increased by 2, then the new mean is

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Q.13426·Miscellaneous·2013·Easy

In this question there has a word has been underlined/italic followed by words listed (a), (b), (c) and (d). Choose the appropriate word most opposite in meaning to the underlined/italic word and mark your Answer Sheet accordingly. This is a trivial matter.

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Q.13427·Miscellaneous·2013·Easy

Which of the following are the examples of discrete variables ? 1. Number of errors per page in a book. 2. Height of individuals measured in cm. 3. Waiting time to failure of electric bulbs. 4. Number of leaves on branches of a tree. Select the correct answer using the code given below :

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Q.13428·Miscellaneous·2013·Easy

The average weight of a class of 15 boys and 10 girls is 38.4 kg. If the average weight of the boys is 40 kg, then what is the average weight of the girls ?

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