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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.1873·Miscellaneous·2023·Easy

A liquid is heated up to a certain temperature. Which one of the following situation would correspond to the boiling of the liquid?

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Q.1874·Miscellaneous·2023·Easy

Which one of the following is NOT an example of organic compound?

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Q.1875·Miscellaneous·2023·Easy

Ram records the odometer readings of his car for the distance covered from 2000 km at the start of his journey and 2400 km at the end of the journey after 8 hours. What is the average speed of the car?

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Q.1876·Miscellaneous·2023·Easy

Ms. Rani decides to convert her AC generator into a DC generator. Which one of the following she would need to use?

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Q.1877·Miscellaneous·2023·Easy

Which of the following statements are correct about the electrical resistance and resistivity of a wire? 1.Both quantities depend on the area of cross-section of the wire 2.Both depend on the temperature 3.Resistance of the wire is directly proportional to the resistivity of the wire 4.Resistivity of the wire is directly proportional to the length of the wire Select the correct answer using the code given below:

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Q.1878·Miscellaneous·2023·Easy

Which one of the following acid is used by goldsmith for cleaning of gold and silver articles?

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Q.1879·Miscellaneous·2023·Easy

In which one of the following states 'Roopkund' lake is located?

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Q.1880·Miscellaneous·2023·Easy

Suppose that there is a chance for a newly constructed building to collapse, whether the design is faulty or not. The chance that the design is faulty is 10%. The chance that the building collapses is 95% if the design is faulty, otherwise it is 45%. If it is seen that the building has collapsed, then what is the probability that it is due to faulty design?

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Q.1881·Miscellaneous·2023·Easy

If r is the coefficient of correlation between x and y, then what is the correlation coefficient between (3x + 4) and (–3y + 3)?

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Q.1882·Miscellaneous·2023·Easy

Which one of the following is the oldest era in Geological History determining the age of various rock types?

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Q.1883·Miscellaneous·2023·Easy

Which one of the following is the usual unit of measurement for Air Pressure used in India?

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Q.1884·Miscellaneous·2023·Easy

A geographical grid has: 1.Lines that run east to west around the globe to mark latitude 2.Lines that run north to south from north pole to south pole indicate longitude Which of the statements given above is/are correct?

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Q.1885·Miscellaneous·2023·Easy

The 'Reign of Terror' in revolutionary France referred to

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Q.1886·Miscellaneous·2023·Easy

In which one of the following ways did the First World War Not impact Europe?

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Q.1887·Miscellaneous·2023·Easy

"...the immediate ending of British rule in India is an urgent necessity..." was a resolution of

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Q.1888·Miscellaneous·2023·Easy

Which one of the following was NOT a way in which kings in ancient India attempted to claim a higher status?

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Q.1889·Miscellaneous·2023·Easy

Which one of the following statements about the Bhakti movement is NOT correct?

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Q.1890·Miscellaneous·2023·Easy

Which one among the following pairs of mine and mineral is NOT correctly matched?

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