Physical Sciences MCQs (Set 1)

1. Which of the following metals can be easily drawn into the wire?

  • A. Lead
  • B. Copper
  • C. Tin
  • D. Zinc
View Answer
Correct Answer:
B. Copper

Explanation:
……

2. Lube oil is used in diesel engines _______________.

  • A. to ignite
  • B. to cool the engine
  • C. to reduce friction
  • D. Both B & C
View Answer
Correct Answer:
D. Both B & C

Explanation:
……

3. Air is charged in the cylinder of diesel engine by _________.

  • A. Exhaust valve
  • B. Inlet valve
  • C. Injector
  • D. Air box
View Answer
Correct Answer:
B. Inlet valve

Explanation:
……

4. The acronym ‘STD’ written on telephone booth stands for ________.

  • A. Straight Telephone Dial
  • B. Switch Telephone Dial
  • C. Subscriber Telephone Dialing
  • D. Save Telephone Dialing
View Answer
Correct Answer:
C. Subscriber Telephone Dialing

Explanation:
……

5. Megger is an instrument to measure ____________.

  • A. Very low resistance
  • B. Insulation resistance
  • C. Q of a coil
  • D. Inductance of a coil
View Answer
Correct Answer:
B. Insulation resistance

Explanation:
……

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