WorksheetsAg. Mechanics 1 Electrical
Total questions: 26
Worksheet time: 13mins
Name
Class
Date
1.
What is the term to describe the rate of flow of electricity?
a)
ampere
Ampere
Ampere
b)
Decimal
c)
kilowatt
Kilowatt
Kilowatt
d)
volt
Ohm
Ohm
2.
What is the term to describe the material that will not conduct electricity?
a)
conductor
b)
insulator
c)
ohm
d)
watt
3.
What term describes the measurement of electrical pressure?
a)
Kilowatts
b)
Ohms
c)
Resistance
d)
Volts
4.
A fuse is a:
a)
device used to overload a circuit
b)
device used to protect circuits from an overload of current
c)
plastic tool used in an ohmmeter
d)
tool used in place of pliers.
5.
A current-carrying conductor not under electrical pressure is a/an:
a)
circuit breaker
b)
hot wire
c)
insulator
d)
neutral wire.
6.
If someone is undergoing electrical shock, it is dangerous to touch that person because both people will become:
a)
disconnected from current.
b)
heroes.
c)
insulators
d)
part of the circuit
7.
Touching electrical switches or receptacles with wet hands may cause electrical shock because:
a)
hands are free of oil
b)
switches are clean
c)
water conducts electricity
d)
water is universal solvent.
8.
What is a device used to protect circuits from an overload of current?
a)
Fuse
b)
Hot wire
c)
Insulator
d)
Neutral wire
9.
A Western Union splice is used:
a)
in the western part of the U.S.
b)
where four or more wires are joined.
c)
where strength is required in a splice
d)
with wire nuts.
10.
What material is a conductor of electricity?
a)
Copper
b)
glass
c)
Insulation
d)
plastic
11.
NM cable is used:
a)
in places where it has to be waterproof.
b)
inside buildings
c)
outside buildings
d)
outside and buried at least 18 inches deep.
12.
What type of connector is turned on to wires to make a pigtail splice and to insulate the splice in one operation?
a)
Glued
b)
Soldered
c)
Solderless
d)
welded
13.
What type of wire splice is used in junction boxes?
a)
glued
b)
rat tail
c)
square knot
d)
Western Union
14.
Which electrical device receives only one plug?
a)
15 amp 240 volt receptacle
b)
Duplex receptacle
c)
Power strip
d)
Three-outlet extension cord
15.
A rat tail splice is used:
a)
every two inches
b)
every two feet
c)
inside junction boxes.
d)
on rats.
16.
When using two three-way switches and one four-way switch, how many traveler wires should be used?
a)
one
b)
two
c)
four
d)
eight
17.
The electrical device that will receive two plugs is a:
a)
240 volt receptacle.
b)
duplex receptacle.
c)
four-way switch.
d)
three-way switch.
18.
A device that automatically trips and opens the circuit when too much current passes through it is a:
a)
circuit breaker.
b)
circuit tester.
c)
single-pole switch.
d)
three-way switch.
19.
The color of the hot electrical wire should be:
a)
black or red.
b)
green or white.
c)
orange or blue.
d)
yellow or brown.
20.
Aluminum wire:
a)
is a better conductor than copper wire.
b)
is heavier and more expensive than copper
c)
requires one size larger than copper to carry the same amperage.
d)
requires one size smaller than copper to carry the same amperage.
21.
How many traveler wires should be used for two three-way switches?
a)
four
b)
none
c)
three
d)
two
22.
Toggle, mercury, silent, rocker arm, and push button are types of:
a)
two way switch
single pole switches.single pole switches.
single pole switches.single pole switches.
b)
three-way switches.
c)
four way switch
four-w
ay switches
four-w
ay switches
d)
five-way switches.
four-way switches
four-way switches
23.
Outdoor electrical wire used underground as feeder wire is classified as:
a)
DC.
b)
SE or SEU.
c)
TW
d)
UF.
24.
Outdoor wire classified SE or SEU is used to:
a)
bring electrical service into buildings.
b)
bury underground as feeder wire.
c)
provide mechanical protection where the wires enter and leave the ground.
d)
provide service in inside buildings in areas with moisture.
25.
Indoor electrical wire used to provide service in areas with moisture or without moisture is classified as:
a)
SE
b)
TW
c)
UF
d)
USE
26.
What type of electrical cable has wires covered with paper and vinyl?
a)
Armored
b)
Conduit
c)
Ground-fault interrupter
d)
Nonmetallic sheathed
100 %
