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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.13339·Miscellaneous·2013·Easy

The crew and passengers of a flying aircraft suffer generally from chronic obstructive pulmonary disease due to the effect of:

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Q.13340·Miscellaneous·2013·Easy

Nearly 30% of the solar radiations return back to the space without contributing to anything to the earth's surface temperature. This amount of radiation is known as:

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Q.13341·Miscellaneous·2013·Easy

Which type/types of pen uses/use capillary action in addition to gravity for flow of ink?

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Q.13342·Miscellaneous·2013·Easy

If two conducting spheres are separately charged and then brought in contact

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Q.13343·Miscellaneous·2013·Easy

The gas used in a refrigerator is

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Q.13344·Miscellaneous·2013·Easy

The Celsius temperature is a/an

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Q.13345·Miscellaneous·2013·Easy

Light-emitting diode (LED) converts:

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Q.13346·Miscellaneous·2013·Easy

In terms of magnetic properties, oxygen belongs to

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Q.13347·Polity·2013·Easy

Consider the following statements regarding antibiotics 1.They are used to destroy disease-causing bacteria. 2.They can be applied to the skin, swallowed or injected to fight microorganisms inside the body. 3.They are effective against disease-causing viruses. 4.The first antibiotic to be discovered was tetracycline. Which of the statements given above is/are correct?

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Q.13348·Miscellaneous·2013·Easy

Milk is unique in its nutritive value. However, it is a poor source of

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Q.13349·Miscellaneous·2013·Easy

The gastrointestinal hormones, namely secretin and cholecystokinin secreted by duodenal epithelium activate respectively which organs to discharge their secretions?

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Q.13350·Miscellaneous·2013·Easy

Confirmation of the presence of Higgs boson will justify

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Q.13351·Miscellaneous·2013·Easy

Which one among the following statements about blood transfusion is correct?

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Q.13352·Miscellaneous·2013·Easy

Dual-energy X-ray absorptiometry (DEXA) is used to measure:

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Q.13353·Miscellaneous·2013·Easy

In human, which one among the following, with reference to breathing, is correct?

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Q.13354·Miscellaneous·2013·Easy

Which one among the following gases readily combines with the haemoglobin of the blood?

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Q.13355·Miscellaneous·2013·Easy

Which of the following gases in the atmosphere is/are responsible for acid rains? 1.Oxides of sulphur 2.Oxides of nitrogen 3.Oxides of carbon Select the correct answer using the code given below

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Q.13356·Miscellaneous·2013·Easy

Which one among the following metals is used in fireworks to make a brilliant white light?

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