Electrical Engineering - Voltage, Current and Resistance

Exercise :: Voltage, Current and Resistance - General Questions

21. 

A circuit breaker is a

A. fuse
B. switch
C. resettable protective device
D. resistor

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

22. 

An ammeter is an electrical instrument used to measure

A. current
B. voltage
C. resistance
D. none of the above

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

23. 

A red, red, orange, gold resistor has a nominal value of

A. 22,000
B. 2,200
C. 22
D. 2.2

Answer: Option A

Explanation:

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24. 

An ohmmeter is an instrument for measuring

A. current
B. voltage
C. resistance
D. wattage

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

25. 

The current in a given circuit is not to exceed 24 A. Which value of fuse is best?

A. a fuse is not necessary
B. 10 A
C. 24 A
D. 20 A

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

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