1
UPSC Civil Service Prelims Paper I 2024 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66

Consider the following statements :

Statement-1 :
Giant stars live much longer than dwarf stars.

Statement-2 :
Compared to dwarf stars, giant stars have a greater rate of nuclear reactions.

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

A

Both Statement-I and Statement-II are correct and Statement-II explains Statement-I

B

Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I

C

Statement-I is correct, but Statement-II is incorrect

D

Statement-I is incorrect, but Statement-II is correct

2
UPSC Civil Service Prelims Paper I 2023 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language
Which one of the following countries has its own Satellite Navigation System?
A
Australia
B
Canada
C
Israel
D
Japan
3
UPSC Civil Service Prelims Paper I 2022 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth ?

1. GPS and navigation systems could fail.

2. Tsunamis could occur at equatorial regions.

3. Power grids could be damaged.

4. Intense auroras could occur over much of the Earth.

5. Forest fires could take place over much of the planet.

6. Orbits of the satellites could be disturbed.

7. Shortwave radio communication of the aircraft flying over polar regions could be interrupted.

Select the correct answer using the code given below:

A
1, 2, 4 and 5 only
B
2, 3, 5, 6 and 7 only
C
1, 3, 4, 6 and 7 only
D
1, 2, 3, 4, 5, 6 and 7
4
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

Which one of the following is a reason why astronomical distances are measured in light-years? 

A
Distances among stellar bodies do not change
B
Gravity of stellar bodies does not change
C
Light always travels in straight line
D
Speed of light is always same
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