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.

21.

The number of kilowatts in 135 milliwatts is

A.

1.35 × 10–4 kW

B.

135 × 10–3 kW

C.

0.0135 kW

D.

0.00135 kW

Correct answer is A

No explanation has been provided for this answer.

22.

When converting 7,000 nA to microamperes, the result is

A.

0.007 µA

B.

0.7 µA

C.

700 µA

D.

7 µA

Correct answer is D

No explanation has been provided for this answer.

23.

The number 65,000 expressed in scientific notation as a number between 1 and 10 times a power of ten is

A.

0.65 × 104

B.

6.5 × 104

C.

65 × 104

D.

650 × 103

Correct answer is B

No explanation has been provided for this answer.

24.

Resistance is measured in

A.

henries

B.

ohms

C.

hertz

D.

watts

Correct answer is B

No explanation has been provided for this answer.

25.

When these numbers are multiplied, (6 × 103) (5 × 105), the result is

A.

3 × 108

B.

30 × 108

C.

300 × 109

D.

3,000 × 107

Correct answer is B

No explanation has been provided for this answer.