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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.10459·Miscellaneous·2015·Easy

The mean and the variance in a binomial distribution are found to be 2 and 1 respectively. The probability P(X = 0) is

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Q.10460·Miscellaneous·2015·Easy

We use CFL to save electrical energy and to provide sufficient light. The full form of CFL is

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Q.10461·Miscellaneous·2015·Easy

In an examination, the probability of a candidate solving a question is 1/2. Out of given 5 questions in the examination, what is the probability that the candidate was able to solve at least 2 questions?

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Q.10462·Miscellaneous·2015·Easy

Two similar boxes Bi (i = 1, 2) contain (i + 1) red and (5 - i - 1) black balls. One box is chosen at random and two balls are drawn randomly. What is the probability that both the balls are of different colours?

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Q.10463·Miscellaneous·2015·Easy

Two men hit at a target with probabilities 1/2 and 1/3 respectively. What is the probability that exactly one of them hits the target?

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Q.10464·Miscellaneous·2015·Easy

If a + b + c = 0, then which of the following is/are correct? 1.a, b, c are coplanar. 2.a × b = b × c = c × a Select the correct answer using the code given below.

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Q.10465·Miscellaneous·2015·Easy

In this question each item consists of a sentence with an underlined word followed by four words or groups of words. Select the word or group of words that is most similar in meaning to the underlined word. He was fired for negligence on duty.

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Q.10466·Miscellaneous·2015·Easy

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them, (a), (b) or (c), is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the substitutions improve the sentence, indicate (d) as your response on the Answer Sheet. Thus a ‘No improvement’ response will be signified by the letter (d). You are warned against committing the same mistake again.

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Q.10467·Miscellaneous·2015·Easy

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them, (a), (b) or (c), is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the substitutions improve the sentence, indicate (d) as your response on the Answer Sheet. Thus a ‘No improvement’ response will be signified by the letter (d). While we would like that all Indian children to go to school, we need to ponder why they do not.

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Q.10468·Miscellaneous·2015·Easy

After having slept for an hour, Bond decided to go out into the city and try to find his contact. After changing his suit, he carefully locked his room and stepped out of the hotel. No one was around.   that he was being

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Q.10469·Miscellaneous·2015·Easy

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them, (a), (b) or (c), is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the substitutions improve the sentence, indicate (d) as your response on the Answer Sheet. Thus a ‘No improvement’ response will be signified by the letter (d). Due to these reasons we are all in favour of universal compulsory education.

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Q.10470·Miscellaneous·2015·Easy

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them, (a), (b) or (c), is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the substitutions improve the sentence, indicate (d) as your response on the Answer Sheet. Thus a ‘No improvement’ response will be signified by the letter (d). When it was feared that the serfs might go too far and gain their freedom from serfdom, the Protestant leaders joined the princes at crushing them.

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Q.10471·Miscellaneous·2015·Easy

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them, (a), (b) or (c), is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the substitutions improve the sentence, indicate (d) as your response on the Answer Sheet. Thus a ‘No improvement’ response will be signified by the letter (d). In India, today many of our intellectuals still talk in terms of the French revolution and the Rights of Man, not appreciating that much has happened since then.

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Q.10472·Miscellaneous·2015·Easy

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them, (a), (b) or (c), is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the substitutions improve the sentence, indicate (d) as your response on the Answer Sheet. Thus a ‘No improvement’ response will be signified by the letter (d). Taxpayers are to be conscious of their privileges.

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Q.10473·Miscellaneous·2015·Easy

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them, (a), (b) or (c), is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the substitutions improve the sentence, indicate (d) as your response on the Answer Sheet. Thus a ‘No improvement’ response will be signified by the letter (d). I would have waited for you at the station if I knew that you would come.

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Q.10474·Miscellaneous·2015·Easy

After having slept for an hour, Bond decided to go out into the city and try to find his contact. After changing his suit, he carefully locked his room and stepped out of the hotel. No one was around.   by someone. There was really no

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Q.10475·Miscellaneous·2015·Easy

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them, (a), (b) or (c), is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the substitutions improve the sentence, indicate (d) as your response on the Answer Sheet. Thus a ‘No improvement’ response will be signified by the letter (d). No one could explain how a calm and balanced person like him could penetrate such a mindless act on his friends.

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Q.10476·Miscellaneous·2015·Easy

S1: At the roadside the driver will be asked to blow through a small glass tube into a plastic bag. S6: The driver will be asked to go to the police station. P: And if the colour change does not reach the line the driver cannot be punished under the new law. Q: Inside the tube are chemically treated crystals which change colour if the driver has alcohol on his breath. R: But if the colour change does reach the line then the test has proved positive. S: If the colour change goes beyond a certain line marked on the tube this indicates that the driver is probably over the specified limit. The proper sequence should be:

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