ELT 131 Exam UPDATED QUESTIONS
AND CORRECT ANSWERS
Which tool is used to attach a splade lug to a wire? - CORRECT ANSWER Crimper
Which color of wire insulation is NOT found in a two-conductor cable? - CORRECT ANSWER
red
Which wire is considered the HOT conductor in a 3-wire circuit? - CORRECT ANSWER
black
Which is not a standard tool used to strip insulation from a wire? - CORRECT ANSWER
Scissors
To quickly determine if a circuit is hot, what is the simplest tool to use? - CORRECT ANSWER
voltage tester
The measure unit of electromotive force is a----------? - CORRECT ANSWER volt
Which is the following is the correct name for the NEC? - CORRECT ANSWER National
Electrical Code
Which metal wire is the most common conductor? - CORRECT ANSWER Copper
What is the first line of defense against accidents? - CORRECT ANSWER Appropriate clothes
Safety precautions must be observed while--------- in order to prevent burns, equipment damge, and
ingestion of toxins from solder and flux. - CORRECT ANSWER Soldering
Soft solder is classified by a ratio of _____________ to lead. - CORRECT ANSWER Tin
, Which type of electricity cycles in one direction and then the other? - CORRECT ANSWER
AC
Properly soldered joints have _____________ to electrical current. - CORRECT ANSWER
low resistance
A good lead solder joint will appear _____________. - CORRECT ANSWER Shiny
Used solder wick should be disposed of in a(n) _____________ waste container. - CORRECT
ANSWER Hazardous
The first step in determining conduit size when conductors are of different size/type is to----------? -
CORRECT ANSWER Determine the number of each different size/type of conductor installed
in the conduit.
When all conductors are of the same size (gauge) and type, NEC __________ can be used to easily
select the appropriate conduit (or tubing) sizes. - CORRECT ANSWER tables C1-C12A
Fish tape, blow line, and power pullers are three basic methods by which __________. - CORRECT
ANSWER Conductors are pulled
Jamming electrical wires into an electrical box may __________. - CORRECT ANSWER All
of the above
To help ensure that conductors are not broken or damaged during installation, the NEC uses--------- as
a guideline for raceway ( conduit or tubing) selection. - CORRECT ANSWER percentage of
fill
The four primary components of a ladder diagram are power supply, input devices, output devices,
and---------. - CORRECT ANSWER Conductors
These identify a wire's signal type in an electrical panel. - CORRECT ANSWER wire colors
AND CORRECT ANSWERS
Which tool is used to attach a splade lug to a wire? - CORRECT ANSWER Crimper
Which color of wire insulation is NOT found in a two-conductor cable? - CORRECT ANSWER
red
Which wire is considered the HOT conductor in a 3-wire circuit? - CORRECT ANSWER
black
Which is not a standard tool used to strip insulation from a wire? - CORRECT ANSWER
Scissors
To quickly determine if a circuit is hot, what is the simplest tool to use? - CORRECT ANSWER
voltage tester
The measure unit of electromotive force is a----------? - CORRECT ANSWER volt
Which is the following is the correct name for the NEC? - CORRECT ANSWER National
Electrical Code
Which metal wire is the most common conductor? - CORRECT ANSWER Copper
What is the first line of defense against accidents? - CORRECT ANSWER Appropriate clothes
Safety precautions must be observed while--------- in order to prevent burns, equipment damge, and
ingestion of toxins from solder and flux. - CORRECT ANSWER Soldering
Soft solder is classified by a ratio of _____________ to lead. - CORRECT ANSWER Tin
, Which type of electricity cycles in one direction and then the other? - CORRECT ANSWER
AC
Properly soldered joints have _____________ to electrical current. - CORRECT ANSWER
low resistance
A good lead solder joint will appear _____________. - CORRECT ANSWER Shiny
Used solder wick should be disposed of in a(n) _____________ waste container. - CORRECT
ANSWER Hazardous
The first step in determining conduit size when conductors are of different size/type is to----------? -
CORRECT ANSWER Determine the number of each different size/type of conductor installed
in the conduit.
When all conductors are of the same size (gauge) and type, NEC __________ can be used to easily
select the appropriate conduit (or tubing) sizes. - CORRECT ANSWER tables C1-C12A
Fish tape, blow line, and power pullers are three basic methods by which __________. - CORRECT
ANSWER Conductors are pulled
Jamming electrical wires into an electrical box may __________. - CORRECT ANSWER All
of the above
To help ensure that conductors are not broken or damaged during installation, the NEC uses--------- as
a guideline for raceway ( conduit or tubing) selection. - CORRECT ANSWER percentage of
fill
The four primary components of a ladder diagram are power supply, input devices, output devices,
and---------. - CORRECT ANSWER Conductors
These identify a wire's signal type in an electrical panel. - CORRECT ANSWER wire colors
