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WorksheetsAg. Mech I Comp 17
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
Outdoor electrical wire used underground as feeder wire is classified as:
a)
DC
b)
UF
c)
TW
d)
SE or SEU
2.
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
3.
What material is a conductor of electricity?
a)
Copper
b)
Glass
c)
Insulation
d)
Plastic
4.
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
5.
What type connector is turned on wires to make a pigtail splice and to insulate the splice in one operation?
a)
Glued
b)
Soldered
c)
Solderless
d)
Welded
6.
Material that allows electrons to flow readily through it is a/an:
a)
Conductor
b)
Insulator
c)
Plastic
d)
Vinyl
7.
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
8.
Which electrical device receives ONLY one plug?
a)
15 amp 240 volt receptacle
b)
Duplex receptacle
c)
Four way switch
d)
Three way switch
9.
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
10.
Material that will NOT conduct electricity is a/an:
a)
Copper
b)
Insulator
c)
Metal
d)
Wire
11.
The type electrical cable that has copper wires covered with paper and vinyl is:
a)
Armored
b)
Conduit
c)
Ground fault interrupts
d)
Nonmetallic sheathed
12.
Jose is replacing aluminum wire with copper. What size copper wire does he need to carry the same electrical load?
a)
One size larger than the aluminum
b)
One size smaller than the aluminum
c)
The same size as the aluminum
d)
Two sizes larger than the aluminum
13.
NM cable is used:
a)
In places where it has to be waterproof
b)
Inside buildings
c)
Outside buildings
d)
Outside, buried at least 18 inches deep
14.
Toggle, mercury, silent, rocker arm, and push button are types of:
a)
Single poles switches
b)
Three way switches
c)
Four way switches
d)
Five way switches
15.
A western union splice is used
a)
In the western part of the US
b)
Where four or more wires are joined
c)
Where strength is required in a splice
d)
With wire nuts
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.
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
18.
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 amps
d)
Requires one size smaller than copper to carry the same amps
19.
A rat tail splice is used:
a)
Every two inches
b)
Every two feet
c)
Inside junction boxes
d)
On rats
20.
How many traveler wires should be used for two three way switches?
a)
Four
b)
None
c)
Three
d)
Two
21.
What type of wire splice is used in junction boxes?
a)
Glued
b)
Rat tail
c)
Square knot
d)
Western Union
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