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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.8713·Miscellaneous·2017·Easy

The chemical properties of an element depend upon

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Q.8714·Miscellaneous·2017·Easy

What is the maximum number of states of matter?

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Q.8715·Miscellaneous·2017·Easy

Which one of the following with regard to Aridisol, one of the soil orders, is not correct?

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Q.8716·Miscellaneous·2017·Easy

The Gulf Stream is a poleward flowing current in the Atlantic Ocean. Which one of the following statements with regard to this is not correct?

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Q.8717·Miscellaneous·2017·Easy

Which of the following statements with regard to cloudburst is/are correct? 1. It is defined as sudden localized very heavy downpour with cloud thunder and lightning. 2. It mostly occurs in the hilly areas. 3. It results into very high intensity of rainfall, i.e., 250 mm–300 mm in a couple of hours. 4. It occurs only during daytime. Select the correct answer using the code given below.

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Q.8718·Miscellaneous·2017·Easy

Tropical evergreen rain forest biome provides optimum environmental conditions for the growth of plants and animals. Which one among the following statements regarding this is not correct?

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Q.8719·Miscellaneous·2017·Easy

Which one of the following statements with regard to the winter solstice is correct?

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Q.8720·Miscellaneous·2017·Easy

Which of the following statements with regard to the Mediterranean agriculture is/are correct? 1. The Mediterranean agriculture is highly specialized commercial agriculture. 2. It is intensive subsistence agriculture dominated by wet paddy cultivation. 3. It is a primitive subsistence agriculture. 4. Viticulture is a speciality of the Mediterranean region. Select the correct answer using the code given below.

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Q.8721·Miscellaneous·2017·Easy

Which one of the following statements with regard to the Indian Railways is not correct?

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Q.8722·Miscellaneous·2017·Easy

Which one of the following is not a biosphere reserve of India?

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Q.8723·Miscellaneous·2017·Easy

With regard to ‘Project Tiger’, which one of the following statements is not correct?

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Q.8724·Miscellaneous·2017·Easy

The optical phenomenon that is primarily responsible for the observation of rainbow on a rainy day is

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Q.8725·Miscellaneous·2017·Easy

A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct?

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Q.8726·Miscellaneous·2017·Easy

A copper wire of radius r and length l has a resistance of R . A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be

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Q.8727·Miscellaneous·2017·Easy

Consider the electromagnetic radiations having wavelengths 200 nm, 500 nm and 1000 nm. Which wavelength(s) of the following can make visual sensation to a human eye?

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Q.8728·Miscellaneous·2017·Easy

The plant growth regulators are small, simple molecules of diverse chemical composition. They are

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Q.8729·Miscellaneous·2017·Easy

The mammalian heart is myogenic and it is regulated by nerves. The heartbeat originates from

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Q.8730·Miscellaneous·2017·Easy

Kwashiorkor disease in children is caused by

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