MULTIPLE
CHOICE QUESTIONS
1.
A ______ is a device that can hold an electrical
charge for a period of time.
a. Resistor
b. Capacitor
c. Inductor
d. Diode
2.
To determine whether a fuse is good, you
actually measure:
a. Current
b. Voltage
c. Resistance
d. Capacitance
3.
What are three good electrical conductors?
a. Copper,
gold, mica
b. Gold, silver, wood
c. Gold, silver, aluminum
d. Copper, aluminum, paper
4.
What are four good electrical insulators?
a. Glass,
air, plastic, porcelain
b. Glass, wood, copper, porcelain
c. Paper, glass, air, aluminum
d. Plastic, rubber, wood, carbon
5.
_______ is the measure of the resistance
of electrical flow in an electrical circuit.
a. Volts
b. Amperes
c. Ohms
d. Watts
6.
_____ are components in electrical circuits
that oppose the flow of electricity.
a. Capacitors
b. Inductors
c. Resistors
d. Diodes
7.
_______ is the measure of the flow of electrical
current.
a. Volts
b. Amperes
c. Ohms
d. Watts
8.
_______ is the measure of the potential
difference in electrical charges on either
side of an electrical device in an electrical
system.
a. Volts
b. Amperes
c. Ohms
d. Watts
9.
As voltage increases, current _______.
a. Decreases
b. Remain the same
c. Increases
d. Becomes zero
10.
_______ are calculated by multiplying volts
by amps.
a. Volts
b. Amps
c. Ohms
d. Watts
11.
What is the name of the pressure that forces
electrons to flow through a circuit?
a. Magnetomotive
force, or inductance
b. Electromotive force, or voltage
c. Farad force, or capacitance
d. Thermal force, or heat
12.
An electric heater draws 12 A
from a 120-V
line. The resistance of the heater is:
a. 1000
b .100
c. 10
d. 1.1
13.
Three series resistances are placed across
a 120 V
source. Determine the value of V1
when R1
= 20 ,
R2=
30 ,
and R3
= 10 .
a. 20 V
b. 40 V
c. 60 V
d. 80 V
14.
A network has 10 branches and 8 independent
loops. How many nodes are there in the network?
1. three
2. four
3. five
4. six
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