Explore topic-wise MCQs in Electrical Engineering.

This section includes 26 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

What is (79 × 10)/(12 × 10)?

A. 6,580 × 10
B. 658 × 10
C. 6.58 × 10
D. 0.658 × 10
Answer» D. 0.658 × 10
Discussion
2.

The number 4.38 × 10 expressed as a number having a power of 10 is

A. 4,380 × 10
B. 438 × 10
C. 43,800 × 10
D. 438,000 × 10
Answer» B. 438 × 10
Discussion
3.

When these numbers are added, (87 × 10) + (2.5 × 10), the result is

A. 1.12 × 10
B. 11.2 × 10
C. 112 × 10
D. 1,120 × 10
Answer» D. 1,120 × 10
Discussion
4.

The quantity 3.3 × 10 is the same as

A. 330
B. 3,300
C. 33,000
D. 0.0033
Answer» C. 33,000
Discussion
5.

The number 0.0003 multiplied by 10 is

A. 0.0000003
B. 0.0003
C. 3
D. 3,000
Answer» B. 0.0003
Discussion
6.

The quantity 43 × 10 is the same as

A. 0.043
B. 0.430
C. 430
D. 43,000
Answer» B. 0.430
Discussion
7.

The number 3.2 × 10 A expressed using a metric prefix is

A. 32 µA
B. 3.3 µA
C. 320 mA
D. 3,200 mA
Answer» B. 3.3 µA
Discussion
8.

The number 4.4 × 10 ohms expressed using a metric prefix is

A. 4 k
B. 4.4 k
C. 4 M
D. 4.4 M
Answer» E.
Discussion
9.

When these numbers are multiplied, (6 × 10) (5 × 10), the result is

A. 3 × 10
B. 30 × 10
C. 300 × 10
D. 3,000 × 10
Answer» C. 300 × 10
Discussion
10.

The number of microamperes in 2 milliamperes is

A. 2 µA
B. 20 µA
C. 200 µA
D. 2,000 µA
Answer» E.
Discussion
11.

The number 3.2 × 10–5 A expressed using a metric prefix is

A. 32 µA
B. 3.3 µA
C. 320 mA
D. 3,200 mA
Answer» B. 3.3 ¬µA
Discussion
12.

Which of the following is not an electrical quantity?

A. voltage
B. current
C. distance
D. power
Answer» D. power
Discussion
13.

Eighteen thousand watts is the same as

A. 18 mW
B. 18 MW
C. 18 kW
D. 18 µW
Answer» D. 18 ¬µW
Discussion
14.

The number of millivolts in 0.06 kilovolts is

A. 600 V
B. 6,000 mV
C. 60,000 mV
D. 600,000 mV
Answer» D. 600,000 mV
Discussion
15.

Fourteen milliamperes can be expressed as

A. 14 MA
B. 14 µA
C. 14 kA
D. 14 mA
Answer» E.
Discussion
16.

When converting 1,600 kilohms to megohms, the result is

A. 1,600,000 M
B. 160 M
C. 1.6 M
D. 0.160 M
Answer» D. 0.160 M
Discussion
17.

When these numbers are added, (87 √ó 105) + (2.5 √ó 106), the result is

A. 1.12 √ó 104
B. 11.2 √ó 105
C. 112 √ó 105
D. 1,120 √ó 106
Answer» D. 1,120 √ó 106
Discussion
18.

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
Answer» B. 135 √ó 10‚Äì3 kW
Discussion
19.

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

A. 0.65 √ó 104
B. 6.5 √ó 104
C. 65 √ó 104
D. 650 √ó 103
Answer» C. 65 √ó 104
Discussion
20.

Voltage is measured in

A. volts
B. farads
C. watts
D. ohms
Answer» B. farads
Discussion
21.

The number 4,500,000 can be expressed as

A. 4,500 √ó 106
B. 4.5 √ó 106
C. 4.5 √ó 10-3
D. either 4,500 √ó 104 or 4.5 √ó 106
Answer» C. 4.5 √ó 10-3
Discussion
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
Answer» E.
Discussion
23.

When converting 0.16 mA to microamperes, the result is

A. 16 µA
B. 160 µA
C. 1,600 µA
D. 0.0016 µA
Answer» C. 1,600 ¬µA
Discussion
24.

Resistance is measured in

A. henries
B. ohms
C. hertz
D. watts
Answer» C. hertz
Discussion
25.

The number 4.4 √ó 106 ohms expressed using a metric prefix is

A. 4 k
B. 4.4 k
C. 4 M
D. 4.4 M
Answer» E.
Discussion
26.

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

A. 3 √ó 108
B. 30 √ó 108
C. 300 √ó 109
D. 3,000 √ó 107
Answer» C. 300 √ó 109
Discussion