NCCER INDUSTRIAL ELECTRICIAN V5 EXAM
QUESTIONS AND ANSWERS
The PEAK voltage in a normal 120/208 VAC system is: - ANSWER-170 V.
What is a fish tape used for? - ANSWER-Pulling wire or rope through conduit
As the ambient temperature surrounding a self-regulating heating cable gets
warmer, the - ANSWER-Increases.
Rubber personnel protective insulating equipment must be marked with the
appropriate voltage rating and - ANSWER-Expiration date.
Which plan indicates the location of structures and equipment on a property? -
ANSWER-Site
THWN conductors have an outer jacket made of: - ANSWER-Nylon
Which of the following is the classified location where combustible vapors are
always present? - ANSWER-Class I Div I
When installing more than one ground rod, what is the MINIMUM spacing between
rods - ANSWER-10 ft.
The length of bare copper conductor in a ground ring MUST be buried no less than
2.5' below grade and - ANSWER-10 ft.
What is the purpose of sealing cable ends that are in storage? - ANSWER-To keep
moisture from entering in.
What is the multiplier from calculating a 45-degree offset when conduit is being
bent? - ANSWER-1.414
Where raceways connect an enclosure required to be dust/ ignition proof to an
enclosure in an UNCLASSIFIED location - ANSWER-Not required.
Which typed of rigid metal conduit would be most appropriate for a corrosive
environment? - ANSWER-Stainless steel
A material with poor electrical conducting properties is a good - ANSWER-Insulator
Insulation on the barrel of crimp connectors for wires sized 22-16 AWG are typically
colored. - ANSWER-Red
, A protective device for limiting voltage spikes by discharging or bypassing surge
current is called a - ANSWER-Surge protector.
A Type LB conduit body has the cover on - ANSWER-The back.
All of the following are common service voltage in the United States EXCEPT -
ANSWER-372/575 three-phase, four-wire.
Why should the test leads of a "megger" NEVER be touched by anyone when in
use? - ANSWER-It could result in an electrical shock.
What is the purpose of lockout/ tagout? - ANSWER-Prevent operation.
With a row of 3-4" conduits and second row of 3-2" and 2-1" conduits for a angle
pull box what is the MINIMUM distance between the pull box? - ANSWER-32"
How should heat-shrink insulators be installed? - ANSWER-The insulator should be
slipped over the connector and heat should be applied for a few seconds
A megohmmeter will be used to check a cable. The electrician MUST be sure that
the circuit is - ANSWER-De-energized and locked, tagged out, and tested.
In a typical 3 wire start/stop station, where will the incoming control voltage wire
be terminated? - ANSWER-Stop button normally closed
Exposed field-routed electrical conduit SHOULD be installed so that it - ANSWER-Is
plumb and level.
Which electrical values CANNOT be tested using a VOM(multimeter)? - ANSWER-
Watts
Who is allowed to remove another electricians tag or lock from any valve, switch, or
piece of equipment without proper authorization? - ANSWER-No one.
What is the PRIMARY consideration in selecting the rope for a cable pull? -
ANSWER-Low stretch
A 1500 KVA three phase transformer has a secondary voltage of 480/277. What is
the secondary full load amperage? - ANSWER-5.42
What is the MINIMUM distance between raceway entries allowed in a pull box for
angle pills? - ANSWER-6x the largest trade size raceway
True power is measured in: - ANSWER-Watts
The strand unit for measuring the cross sectional area of wire is the - ANSWER-
Circular mil.
QUESTIONS AND ANSWERS
The PEAK voltage in a normal 120/208 VAC system is: - ANSWER-170 V.
What is a fish tape used for? - ANSWER-Pulling wire or rope through conduit
As the ambient temperature surrounding a self-regulating heating cable gets
warmer, the - ANSWER-Increases.
Rubber personnel protective insulating equipment must be marked with the
appropriate voltage rating and - ANSWER-Expiration date.
Which plan indicates the location of structures and equipment on a property? -
ANSWER-Site
THWN conductors have an outer jacket made of: - ANSWER-Nylon
Which of the following is the classified location where combustible vapors are
always present? - ANSWER-Class I Div I
When installing more than one ground rod, what is the MINIMUM spacing between
rods - ANSWER-10 ft.
The length of bare copper conductor in a ground ring MUST be buried no less than
2.5' below grade and - ANSWER-10 ft.
What is the purpose of sealing cable ends that are in storage? - ANSWER-To keep
moisture from entering in.
What is the multiplier from calculating a 45-degree offset when conduit is being
bent? - ANSWER-1.414
Where raceways connect an enclosure required to be dust/ ignition proof to an
enclosure in an UNCLASSIFIED location - ANSWER-Not required.
Which typed of rigid metal conduit would be most appropriate for a corrosive
environment? - ANSWER-Stainless steel
A material with poor electrical conducting properties is a good - ANSWER-Insulator
Insulation on the barrel of crimp connectors for wires sized 22-16 AWG are typically
colored. - ANSWER-Red
, A protective device for limiting voltage spikes by discharging or bypassing surge
current is called a - ANSWER-Surge protector.
A Type LB conduit body has the cover on - ANSWER-The back.
All of the following are common service voltage in the United States EXCEPT -
ANSWER-372/575 three-phase, four-wire.
Why should the test leads of a "megger" NEVER be touched by anyone when in
use? - ANSWER-It could result in an electrical shock.
What is the purpose of lockout/ tagout? - ANSWER-Prevent operation.
With a row of 3-4" conduits and second row of 3-2" and 2-1" conduits for a angle
pull box what is the MINIMUM distance between the pull box? - ANSWER-32"
How should heat-shrink insulators be installed? - ANSWER-The insulator should be
slipped over the connector and heat should be applied for a few seconds
A megohmmeter will be used to check a cable. The electrician MUST be sure that
the circuit is - ANSWER-De-energized and locked, tagged out, and tested.
In a typical 3 wire start/stop station, where will the incoming control voltage wire
be terminated? - ANSWER-Stop button normally closed
Exposed field-routed electrical conduit SHOULD be installed so that it - ANSWER-Is
plumb and level.
Which electrical values CANNOT be tested using a VOM(multimeter)? - ANSWER-
Watts
Who is allowed to remove another electricians tag or lock from any valve, switch, or
piece of equipment without proper authorization? - ANSWER-No one.
What is the PRIMARY consideration in selecting the rope for a cable pull? -
ANSWER-Low stretch
A 1500 KVA three phase transformer has a secondary voltage of 480/277. What is
the secondary full load amperage? - ANSWER-5.42
What is the MINIMUM distance between raceway entries allowed in a pull box for
angle pills? - ANSWER-6x the largest trade size raceway
True power is measured in: - ANSWER-Watts
The strand unit for measuring the cross sectional area of wire is the - ANSWER-
Circular mil.
