UPSC Civil Service Prelims Paper I 2023 (General Studies) | UPSC Civil Service Year Wise Previous Years Questions

Objects in space		Description
(1)	Cepheids	Giant clouds of dust and gas in space
(2)	Nebulae	Stars which brighten and dim periodically
(3)	Pulsars	Neutron stars that are formed when massive stars run out of fuel and collapse

How many of the above pairs are correctly matched?

Only one

Only two

All three

None

UPSC Civil Service Prelims Paper I 2023 (General Studies)

MCQ (Single Correct Answer)

-0.66

Consider the following countries:

1. Bulgaria

2. Czech Republic

3. Hungary

4. Latvia

5. Lithuania

6. Romania

How many of the above-mentioned countries share a land border with Ukraine?

Only two

Only three

Only four

Only five

UPSC Civil Service Prelims Paper I 2023 (General Studies)

MCQ (Single Correct Answer)

-0.66

With reference to the Earth's atmosphere, which one of the following statements is correct?

The total amount of insolation received at the equator is roughly about 10 times of that received at the poles.

Infrared rays constitute roughly two-thirds of insolation.

Infrared waves are largely absorbed by water vapour that is concentrated in the lower atmosphere.

Infrared waves are a part of visible spectrum of electromagnetic waves of solar radiation.

UPSC Civil Service Prelims Paper I 2023 (General Studies)

MCQ (Single Correct Answer)

-0.66

Consider the following statements:

Statement-I: The temperature contrast between continents and oceans is greater during summer than in winter.

Statement-II: The specific heat of water is more than that of land surface.

Which one of the following is correct in respect of the above statements?

Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-l

Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I

Statement-I is correct but Statement-II is incorrect

Statement-I is incorrect Statement-II is correct