Explore topic-wise MCQs in Electrical Engineering.

This section includes 44 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.

A potentiometer is a two-terminal variable resistor.

A. True
B. False
Answer» C.
Discussion
2.

Eighttenths coulomb passes a point in 4 s. The current in amperes is

A. .6 A
B. 6 A
C. A
D. .2 A
Answer» E.
Discussion
3.

A voltmeter is connected across the current path.

A. rue
B. alse
Answer» B. alse
Discussion
4.

An ammeter is connected across the current path.

A. rue
B. alse
Answer» C.
Discussion
5.

A twoterminal variable resistor is known as a

A. otentiometer
B. hermistor
C. heostat
D. iper
Answer» D. iper
Discussion
6.

The atomic number is the number of neutrons in the nucleus.

A. rue
B. alse
Answer» C.
Discussion
7.

A neutral atom is one with an equal number of protons and electrons.

A. rue
B. alse
Answer» B. alse
Discussion
8.

An open circuit is one that has a complete current path.

A. rue
B. alse
Answer» C.
Discussion
9.

A potentiometer is a twoterminal variable resistor.

A. rue
B. alse
Answer» C.
Discussion
10.

A material that does not allow current under normal conditions is a/an

A. nsulator
B. onductor
C. emiconductor
D. alence
Answer» B. onductor
Discussion
11.

Resistance limits the current.

A. rue
B. alse
Answer» B. alse
Discussion
12.

Current flows in a circuit when%!

A. A switch is opened
B. A switch is closed
C. The switch is either open or closed
D. There is no voltage
Answer» C. The switch is either open or closed
Discussion
13.

Eighttenths 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
Answer» E.
Discussion
14.

The unit of electrical charge is the%!

A. Coulomb
B. Joule
C. Volt
D. Watt
Answer» B. Joule
Discussion
15.

The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms.%!

A. True
B. False
Answer» B. False
Discussion
16.

An ammeter is an electrical instrument used to measure%!

A. Current
B. Voltage
C. Resistance
D. None of the above
Answer» B. Voltage
Discussion
17.

A twoterminal variable resistor is known as a%!

A. Potentiometer
B. Thermistor
C. Rheostat
D. Wiper
Answer» D. Wiper
Discussion
18.

A thermistor is a type of%!

A. Switch
B. Resistor
C. Battery
D. Power supply
Answer» C. Battery
Discussion
19.

Electrons in the outer orbit are called%!

A. Nuclei
B. Valences
C. Waves
D. Shells
Answer» C. Waves
Discussion
20.

Materials with lots of free electrons are called%!

A. Yellow, violet, red, gold
B. Yellow, violet, orange, gold
C. Yellow, violet, red, silver
D. Orange, violet, red, silver
Answer» D. Orange, violet, red, silver
Discussion
21.

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
Answer» D. 20 A
Discussion
22.

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
Answer» B. 2,200 ≈í¬©
Discussion
23.

Which of the following is not a type of energy source?%!

A. Generator
B. Rheostat
C. Solar cell
D. Battery
Answer» C. Solar cell
Discussion
24.

A voltmeter is connected across the current path.%!

A. True
B. False
Answer» B. False
Discussion
25.

A circuit breaker is a%!

A. Conductors
B. Insulators
C. Semiconductors
D. Filters
Answer» B. Insulators
Discussion
26.

A potentiometer is a twoterminal variable resistor.%!

A. True
B. False
Answer» C.
Discussion
27.

An ohmmeter is an instrument for measuring%!

A. Current
B. Voltage
C. Resistance
D. Wattage
Answer» D. Wattage
Discussion
28.

The maximum resistance value for a brown, red, yellow, gold resistor is%!

A. 126,000 Ω
B. 126,600 Ω
C. 114,000 Ω
D. 132,000 Ω
Answer» B. 126,600 ≈í¬©
Discussion
29.

An ammeter is connected across the current path.%!

A. True
B. False
Answer» C.
Discussion
30.

When placed close together, two positively charged materials will%!

A. Fuse
B. Switch
C. Resettable protective device
D. Resistor
Answer» D. Resistor
Discussion
31.

A material that does not allow current under normal conditions is a/an%!

A. Insulator
B. Conductor
C. Semiconductor
D. Valence
Answer» B. Conductor
Discussion
32.

The atomic number is the number of neutrons in the nucleus.%!

A. True
B. False
Answer» C.
Discussion
33.

A neutral atom is one with an equal number of protons and electrons.%!

A. True
B. False
Answer» B. False
Discussion
34.

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
Answer» D. 5 C
Discussion
35.

The minimum resistance value for a blue, gray, red, silver resistor is%!

A. Attract
B. Become neutral
C. Become negative
D. Repel
Answer» E.
Discussion
36.

Free electrons make current possible.%!

A. True
B. False
Answer» B. False
Discussion
37.

A free electron is a valence electron that has broken away from its parent atom.%!

A. True
B. False
Answer» B. False
Discussion
38.

An open circuit is one that has a complete current path.%!

A. True
B. False
Answer» C.
Discussion
39.

A wiper is the sliding contact in a%!

A. Switch
B. Photoconductive cell
C. Thermistor
D. Potentiometer
Answer» E.
Discussion
40.

A multimeter measures%!

A. Current
B. Voltage
C. Resistance
D. Current, voltage, and resistance
Answer» E.
Discussion
41.

Resistance limits the current.%!

A. True
B. False
Answer» B. False
Discussion
42.

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
Answer» C. None
Discussion
43.

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
Answer» B. 105 C
Discussion
44.

The conductance of an 8 ohm resistance is%!

A. 12.5 mS
B. 8 mS
C. 12 S
D. 125 mS
Answer» E.
Discussion