Voltage, Current and Resistance Questions & Answers

1.

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

Correct answer is C

No explanation has been provided for this answer.

2.

An ohmmeter is an instrument for measuring

A.

current

B.

voltage

C.

resistance

D.

wattage

Correct answer is C

No explanation has been provided for this answer.

3.

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

A.

22,000 Ω

B.

2,200 Ω

C.

22 Ω

D.

2.2 Ω

Correct answer is A

No explanation has been provided for this answer.

4.

An ammeter is an electrical instrument used to measure

A.

current

B.

voltage

C.

resistance

D.

none of the above

Correct answer is A

No explanation has been provided for this answer.

5.

A circuit breaker is a

A.

fuse

B.

switch

C.

resettable protective device

D.

resistor

Correct answer is C

No explanation has been provided for this answer.