Electrical Engineering questions and answers

Electrical Engineering Questions and Answers

How well do you understand the design, building and maintenance of electrical control systems, machinery and equipment? Test your knowledge and prepare for your exams with these Electrical Engineering questions and answers.

31.

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

A.

1

B.

5

C.

none

D.

depends on the type of atom

Correct answer is B

No explanation has been provided for this answer.

32.

A wiper is the sliding contact in a

A.

switch

B.

photoconductive cell

C.

thermistor

D.

potentiometer

Correct answer is D

No explanation has been provided for this answer.

33.

If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.75 s?

A.

10.5 C

B.

105 C

C.

3.4 C

D.

34 C

Correct answer is A

No explanation has been provided for this answer.

34.

A multimeter measures

A.

current

B.

voltage

C.

resistance

D.

current, voltage, and resistance

Correct answer is D

No explanation has been provided for this answer.

35.

The unit of electrical charge is the

A.

volt

B.

ampere

C.

joule

D.

coulomb

Correct answer is D

No explanation has been provided for this answer.

36.

A material that does not allow current under normal conditions is a(n)

A.

insulator

B.

conductor

C.

semi-conductor

D.

valence

Correct answer is A

No explanation has been provided for this answer.

37.

The colored bands for a 4,700 ohm resistor with a ten percent tolerance are

A.

yellow, violet, red, gold

B.

yellow, violet, orange, gold

C.

yellow, violet, red, silver

D.

orange, violet, red, silver

Correct answer is C

No explanation has been provided for this answer.

38.

When the current is 2.5 A, how many coulombs pass a point in 0.2 s?

A.

12.5 C

B.

1.25 C

C.

0.5 C

D.

5 C

Correct answer is C

No explanation has been provided for this answer.

39.

Eight-tenths coulomb passes a point in 4 s. The current in amperes is

A.

1.6 A

B.

16 A

C.

2 A

D.

0.2 A

Correct answer is D

No explanation has been provided for this answer.

40.

A two-terminal variable resistor is known as a

A.

potentiometer

B.

thermistor

C.

rheostat

D.

wiper

Correct answer is C

No explanation has been provided for this answer.