Electrical Engineering Questions and Answers


16)

An ohmmeter is an instrument for measuring


Answer: Option C

17)

An ammeter is an electrical instrument used to measure


Answer: Option A

18)

A circuit breaker is a


Answer: Option C

Explanation:

Circuit breaker break the circuit when it sense any abnormal condition in the circuit using relay. Relay is a very important component in a circuit breaker.

19)

A neutral atom with an atomic number of five has how many electrons?


Answer: Option B

Explanation:

1 st orbit = 2 electrons
2 nd orbit = 3 electron
atomic no = no.of protons in nucleus
there fore 2+3=5

20)

A wiper is the sliding contact in a


Answer: Option D

Explanation:

Wiper is connected on metal rod of potentiometer, we can vary it.