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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.10189·Miscellaneous·2015·Easy

The loudness of sound is related to:

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Q.10190·Miscellaneous·2015·Easy

Which one of the following is not a site of action in human body for the malarial parasite plasmodium?

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Q.10191·Miscellaneous·2015·Easy

Match List I with List II and select the correct answer using the code given below the Lists: List I (Element) A. Li B. Na C. K D. Cs List II (Use) Time keeper in atomic clocks Batteries Transfer of nerve impulses Control of the water content in the blood Code:

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Q.10192·Miscellaneous·2015·Easy

Match List I with List II and select the correct answer using the code given below the Lists: List I (Low-Latitude Climate) A. Wet Equatorial B. Monsoon and trade wind coastal C. Wet-dry tropical D. Dry tropical List II (Characteristic) Uniform temperatures, mean near 27 °C Marked temperature cycle with very high temperature before the rainy season Temperatures show an annual cycle with high temperature in the high-Sun season Strong temperature cycle, with intense temperature during high-Sun season Code:

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Q.10193·Miscellaneous·2015·Easy

The acceleration due to gravity ‘g’ for objects on or near the surface of earth is related to the universal gravitational constant ‘G’ as (‘M’ is the mass of the earth and ‘R’ is its radius):

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Q.10194·Miscellaneous·2015·Easy

The two provisions of the Constitution of India that most clearly express the power of judicial review are:

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Q.10195·Miscellaneous·2015·Easy

Which one of the following continents accounts for the maximum share in exports from India?

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Q.10196·Miscellaneous·2015·Easy

Which one of the following is not correct in the context of balance of payments of India during 2013-2014?

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Q.10197·Miscellaneous·2015·Easy

The word ‘Secular’ was inserted into the Constitution of India by:

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Q.10198·Miscellaneous·2015·Easy

According to the Geo-scientists, the shape of the earth is: 1. round 2. spherical 3.c lose to that of a sphere 4. an oblate ellipsoid Select the correct answer using the code given below:

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Q.10199·Miscellaneous·2015·Easy

What is the probability that the sum of any two different single digit natural numbers is a prime number ?

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Q.10200·Miscellaneous·2015·Easy

The regression coefficients of a bivariate distribution are –0.64 and –0.36. Then the correlation coefficient of the distribution is

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Q.10201·Miscellaneous·2015·Easy

A coin is tossed 5 times. The probability that tail appears an odd number of times, is

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Q.10202·Miscellaneous·2015·Easy

An insurance company insured 2000 scooter drivers, 4000 car drivers and 6000 truck drivers. The probabilities of an accident involving a scooter driver, car driver and a truck driver are 0.01, 0.03 and 0.15 respectively. One of the insured persons meets with an accident. The probability that the person is a scooter driver is

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Q.10203·Miscellaneous·2015·Easy

A problem in statistics is given to three students A, B and C whose chances of solving it independently are 1/2, 1/3 and 1/4 respectively. The probability that the problem will be solved is

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Q.10204·Miscellaneous·2015·Easy

A bag contains 4 white and 2 black balls and another bag contains 3 white and 5 black balls. If one ball is drawn from each bag, then the probability that one ball is white and one ball is black is

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Q.10205·Miscellaneous·2015·Easy

An unbiased coin is tossed until the first head appears or until four tosses are completed, whichever happens earlier. Which of the following statements is/are correct ? 1. The probability that no head is observed is 1/16. 2. The probability that the experiment ends with three tosses is 1/8. Select the correct answer using the code given below :

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Q.10206·Miscellaneous·2015·Easy

The arithmetic mean of 1, 8, 27, 64, … up to n terms is given by

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