EEE : Quantities and Units MCQs with Answers

A)  ohms
B)  volts
C)  watts
D)  farads

Correct Answer :   volts

2 .
The number 0.0003 multiplied by 10-3 is
A)  0.0000003
A)  
B)  0.0003
B)  
C)  3
C)  
D)  3,000
D)  

Correct Answer :   0.0000003

A)  0.0002 MΩ
B)  0.00002 MΩ
C)  3 × 10⁻⁵MΩ
D)  either 0.00002 MΩ or 0.0002 MΩ

Correct Answer :   3 × 10⁻⁵MΩ

4 .
The quantity 43 × 10-3 is the same as
A)  0.043
A)  
B)  0.430
B)  
C)  430
C)  
D)  43,000
D)  

Correct Answer :   0.043

A)  volts
B)  watts
C)  henries
D)  amperes

Correct Answer :   amperes

A)  0.0016 µA
B)  16 µA
C)  160 µA
D)  1,600 µA

Correct Answer :   160 µA

A)  power
B)  current
C)  voltage
D)  distance

Correct Answer :   distance

A)  7 kV
B)  7 MW
C)  7 mV
D)  Either 7 kV or 7 mV

Correct Answer :   7 kV

9 .
The quantity 3.3 × 103 is the same as
A)  330
A)  
B)  3,300
B)  
C)  33,000
C)  
D)  0.0033
D)  

Correct Answer :   3,300

10 .
When these numbers are added, (87 × 105) + (2.5 × 106), the result is
A)  1.12 × 10⁴
A)  
B)  11.2 × 10⁵
B)  
C)  112 × 10⁵
C)  
D)  1,120 × 10⁶
D)  

Correct Answer :   112 × 10⁵

11 .
When these numbers are multiplied, (6 × 103) (5 × 105), the result is
A)  3 × 108
A)  
B)  30 × 108
B)  
C)  300 × 109
C)  
D)  3,000 × 107
D)  

Correct Answer :   30 × 108

A)  ohms
B)  hertz
C)  watts
D)  henries

Correct Answer :   ohms

A)  7 µA
B)  700 µA
C)  0.7 µA
D)  0.007 µA

Correct Answer :   7 µA

A)  2 µA
B)  20 µA
C)  200 µA
D)  2,000 µA

Correct Answer :   2,000 µA

A)  600 V
B)  6,000 mV
C)  60,000 mV
D)  600,000 mV

Correct Answer :   60,000 mV

A)  18 µW
B)  18 kW
C)  18 MW
D)  18 mW

Correct Answer :   18 kW

A)  14 kA
B)  14 mA
C)  14 µA
D)  14 MA

Correct Answer :   14 mA

18 .
The number 4.38 × 10–3 expressed as a number having a power of 10–6 is
A)  4,380 × 10–6
A)  
B)  438 × 10–6
B)  
C)  43,800 × 10–6
C)  
D)  438,000 × 10–6
D)  

Correct Answer :   4,380 × 10–6

19 .
What is (79 × 106)/(12 × 10–8)?
A)  658 × 1010
A)  
B)  6,580 × 1012
B)  
C)  6.58 × 1014
C)  
D)  0.658 × 1016
D)  

Correct Answer :   6.58 × 1014

20 .
The number 4,500,000 can be expressed as
A)  4.5 × 10-3
A)  
B)  4.5 × 106
B)  
C)  4,500 × 106
C)  
D)  Either 4,500 × 104 or 4.5 × 106
D)  

Correct Answer :   4.5 × 106

A)  1.6 MΩ
B)  0.160 MΩ
C)  160 MΩ
D)  1,600,000 MΩ

Correct Answer :   1.6 MΩ

22 .
The number 3.2 × 10–5 A expressed using a metric prefix is
A)  32 µA
A)  
B)  3.3 µA
B)  
C)  320 mA
C)  
D)  3,200 mA
D)  

Correct Answer :   32 µA

23 .
The number 4.4 × 106 ohms expressed using a metric prefix is
A)  4 k
A)  
B)  4.4 k
B)  
C)  4 M
C)  
D)  4.4 M
D)  

Correct Answer :   4.4 M

24 .
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
A)  
B)  6.5 × 104
B)  
C)  65 × 104
C)  
D)  650 × 103
D)  

Correct Answer :   6.5 × 104

25 .
The number of kilowatts in 135 milliwatts is
A)  0.00135 kW
A)  
B)  0.0135 kW
B)  
C)  1.35 × 10–4 kW
C)  
D)  135 × 10–3 kW
D)  

Correct Answer :   1.35 × 10–4 kW