General Science problems
- 1. Tetraethyl lead is used as
Options- A. pain killer
- B. fire extinguisher
- C. mosquito repellent
- D. petrol additive Discuss
Correct Answer: petrol additive
- 2. Diamond is an allotropic form of
Options- A. germanium
- B. carbon
- C. silicon
- D. sulphur Discuss
Correct Answer: carbon
- 3. The hardest substance available on earth is
Options- A. Gold
- B. Iron
- C. Diamond
- D. Platinum Discuss
Correct Answer: Diamond
- 4. A chronometer measures
Options- A. colour contrast
- B. sound waves
- C. time
- D. water waves Discuss
Correct Answer: time
- 5. kilohertz is a unit which measures
Options- A. power used by a current of one ampere
- B. electromagnetic radio wave frequencies
- C. voltage
- D. electric resistance Discuss
Correct Answer: electromagnetic radio wave frequencies
- 6. Decibel is the unit for
Options- A. speed of light
- B. radio wave frequency
- C. intensity of sound
- D. intensity of heat Discuss
Correct Answer: intensity of sound
- 7. Light year is a measurement of
Options- A. speed of aeroplanes
- B. speed of light
- C. Stellar distances
- D. speed of rockets Discuss
Correct Answer: Stellar distances
- 8. One horse power is equal to
Options- A. 746 watts
- B. 748 watts
- C. 756 watts
- D. 736 watts Discuss
Correct Answer: 746 watts
- 9. 'Bar' is the unit of
Options- A. temperature
- B. heat
- C. atmospheric pressure
- D. current Discuss
Correct Answer: atmospheric pressure
- 10. Very small time intervals are accurately measure by
Options- A. White dwarfs
- B. Quartz clocks
- C. Atomic clocks
- D. Pulsars Discuss
Correct Answer: Atomic clocks
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