Kerala PSC - Important and Repeated General Science Questions - 01
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1. Which of the following measurements is not a unit of distance?

[a] Ammeter
[b] Cubit
[c] Parsec
[d] angstrom

2. Which one of the following remains constant while throwing a ball upward?

[a] Displacement
[b] Kinectic energy
[c] Acceleration
[d] Velocity

3. Pure water freezes at what temperature?

[a] 47 F
[b] 32 F
[c] 0 F
[d] 19 F

4. Which vitamin is abundant in citrus fruits?

[a] Vitamin A
[b] Vitamin B
[c] Vitamin C
[d] Vitamin D

5. Zinc Oxide is

[a] Acidic
[b] Basic
[c] Neutral
[d] Amphoteric

6. Water is a _____________ Conductor of electricity.

[a] super conductor
[b] bad conductor
[c] speed conductor
[d] None of these

7. What element’s three isotopes have different names?

[a] Helium
[b] Oxygen
[c] Carbon
[d] Hydrogen

8. On which one of the following conservation laws, does a rocket work?

[a] Mass
[b] Energy
[c] Linear momentum
[d] Angular momentum

9. Which one among the following radiations carries maximum energy?

[a] Ultraviolet rays
[b] Gamma rays
[c] X- rays
[d] Infra red rays

10. The Central Arid Zone Research Institute (CAZRI) is located at

[a] Jaipur
[b] Jodhpur
[c] Jaisalmer
[d] Jallandhar

11. What is the main constituent of coal gas?

[a] Oxygen
[b] Water
[c] Nitrogen
[d] Methane

12. Recoil of a gun is an example of

[a] Conservation of mass
[b] conservation of energy
[c] conservation of PE into KE
[d] conservation of linear momentum

13. What is the heaviest of the naturally occuring Noble gases?

[a] Radon
[b] Xenon
[c] Helium
[d] Argon

14. Aviation fuel for Jet aeroplanes consists of purified

[a] Petrol
[b] Kerosene
[c] Gasoline
[d] Diesel

15. A piece of stone and or iron traveling through space that moves through the earth’s atmosphere is

[a] Planet
[b] Sun
[c] Moon
[d] Meteor

16. Which one of the following common devices works on the basis of the principle of mutual induction?

[a] Tube light
[b] Transformer
[c] Photodiode
[d] Led

17. Dc current can be controlled by which one of the following components?

[a] Impedance
[b] Resistance
[c] Capacitance
[d] Inductance

18. Mesons are found in

[a] Alpha -rays
[b] Laser beam
[c] X – rays
[d] Cosmic rays

19. A moderator is used in nuclear reactors in order to

[a] increase the no.of.neutrons
[b] decrease the no.of.neutrons
[c] slow down the speed of neutrons
[d] Anthony S. D’Mello

20. The wavelength of X-rays is of the order of

[a] 1 cm
[b] 1 m
[c] 10 micron
[d] 1 Angstrom

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