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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.5005·Miscellaneous·2020·Easy

The United Nations Charter was signed by 51 original members of the United Nations in 1945 at the

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Q.5006·Miscellaneous·2020·Easy

Land Revenue Records maintained in India have categorized land-use into

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Q.5007·Miscellaneous·2020·Easy

For an area to be excluded from the drought-prone category, what percentage of its gross cropped area should be under irrigation?

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Q.5008·Miscellaneous·2020·Easy

Which one of the following is NOT a current of Pacific Ocean?

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Q.5009·Miscellaneous·2020·Easy

The duration of monsoon in India extends for an average period of

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Q.5010·Miscellaneous·2020·Easy

Which one of the following is the natural vegetation of South east China?

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Q.5011·Miscellaneous·2020·Easy

What is the probability that February of a leap year selected at random, will have five Sundays ?

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Q.5012·Miscellaneous·2020·Easy

The arithmetic mean of 100 observations is 40. Later, it was found that an observation ‘53’ was wrongly read as ‘83’. What is the correct arithmetic mean ?

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Q.5013·Miscellaneous·2020·Easy

A husband and wife appear in an interview for two vacancies for the same post. The probability of the husband’s selection is 1/7 and that of the wife’s selection is 1/5. If the events are independent, then the probability of which one of the following is 11/35 ?

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Q.5014·Miscellaneous·2020·Easy

A dealer has a stock of 15 gold coins out of which 6 are counterfeits. A person randomly picks 4 of the 15 gold coins. What is the probability that all the coins picked will be counterfeits ?

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Q.5015·Miscellaneous·2020·Easy

A committee of 3 is to be formed from a group of 2 boys and 2 girls. What is the probability that the committee consists of 2 boys and 1 girl ?

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Q.5016·Miscellaneous·2020·Easy

In a lottery of 10 tickets numbered 1 to 10, two tickets are drawn simultaneously. What is the probability that both the tickets drawn have prime numbers ?

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Q.5017·Miscellaneous·2020·Easy

Consider a random variable X which follows Binomial distribution with parameters n = 10 and p = 1/5. Then Y = 10 – X follows Binomial distribution with parameters n and p respectively given by

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Q.5018·Miscellaneous·2020·Easy

Which one of the following is a cold local wind?

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Q.5019·Miscellaneous·2020·Easy

What was the consequence of Permanent Settlement on rural society in Bengal?

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Q.5020·Miscellaneous·2020·Easy

What was Damin-i-Koh in Rajmahal area?

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Q.5021·Miscellaneous·2020·Easy

Which one of the following statements about the Revolt of 1857 is correct?

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Q.5022·Miscellaneous·2020·Easy

Which one among the following was NOT a Panch Sheel principle?

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