EXAM: INDUSTRIAL ELECTRICIAN V5
(NCCER EXAM) QUESTIONS WITH
DETAILED ANSWERS
The PEAK voltage in a normal 120/208 VAC system is: - ANSWERS170 V.
What is a fish tape used for? - ANSWERSPulling wire or rope through conduit
As the ambient temperature surrounding a self-regulating heating cable gets warmer,
the - ANSWERSIncreases.
Rubber personnel protective insulating equipment must be marked with the appropriate
voltage rating and - ANSWERSExpiration date.
Which plan indicates the location of structures and equipment on a property? -
ANSWERSSite
THWN conductors have an outer jacket made of: - ANSWERSNylon
Which of the following is the classified location where combustible vapors are always
present? - ANSWERSClass I Div I
When installing more than one ground rod, what is the MINIMUM spacing between rods
- ANSWERS10 ft.
The length of bare copper conductor in a ground ring MUST be buried no less than 2.5'
below grade and - ANSWERS10 ft.
What is the purpose of sealing cable ends that are in storage? - ANSWERSTo keep
moisture from entering in.
What is the multiplier from calculating a 45-degree offset when conduit is being bent? -
ANSWERS1.414
Where raceways connect an enclosure required to be dust/ ignition proof to an
enclosure in an UNCLASSIFIED location - ANSWERSNot required.
Which typed of rigid metal conduit would be most appropriate for a corrosive
environment? - ANSWERSStainless steel
A material with poor electrical conducting properties is a good - ANSWERSInsulator
, Insulation on the barrel of crimp connectors for wires sized 22-16 AWG are typically
colored. - ANSWERSRed
A protective device for limiting voltage spikes by discharging or bypassing surge current
is called a - ANSWERSSurge protector.
A Type LB conduit body has the cover on - ANSWERSThe back.
All of the following are common service voltage in the United States EXCEPT -
ANSWERS372/575 three-phase, four-wire.
Why should the test leads of a "megger" NEVER be touched by anyone when in use? -
ANSWERSIt could result in an electrical shock.
What is the purpose of lockout/ tagout? - ANSWERSPrevent 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? - ANSWERS32"
How should heat-shrink insulators be installed? - ANSWERSThe 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 - ANSWERSDe-energized and locked, tagged out, and tested.
In a typical 3 wire start/stop station, where will the incoming control voltage wire be
terminated? - ANSWERSStop button normally closed
Exposed field-routed electrical conduit SHOULD be installed so that it - ANSWERSIs
plumb and level.
Which electrical values CANNOT be tested using a VOM(multimeter)? -
ANSWERSWatts
Who is allowed to remove another electricians tag or lock from any valve, switch, or
piece of equipment without proper authorization? - ANSWERSNo one.
What is the PRIMARY consideration in selecting the rope for a cable pull? -
ANSWERSLow stretch
A 1500 KVA three phase transformer has a secondary voltage of 480/277. What is the
secondary full load amperage? - ANSWERS5.42
What is the MINIMUM distance between raceway entries allowed in a pull box for angle
pills? - ANSWERS6x the largest trade size raceway
(NCCER EXAM) QUESTIONS WITH
DETAILED ANSWERS
The PEAK voltage in a normal 120/208 VAC system is: - ANSWERS170 V.
What is a fish tape used for? - ANSWERSPulling wire or rope through conduit
As the ambient temperature surrounding a self-regulating heating cable gets warmer,
the - ANSWERSIncreases.
Rubber personnel protective insulating equipment must be marked with the appropriate
voltage rating and - ANSWERSExpiration date.
Which plan indicates the location of structures and equipment on a property? -
ANSWERSSite
THWN conductors have an outer jacket made of: - ANSWERSNylon
Which of the following is the classified location where combustible vapors are always
present? - ANSWERSClass I Div I
When installing more than one ground rod, what is the MINIMUM spacing between rods
- ANSWERS10 ft.
The length of bare copper conductor in a ground ring MUST be buried no less than 2.5'
below grade and - ANSWERS10 ft.
What is the purpose of sealing cable ends that are in storage? - ANSWERSTo keep
moisture from entering in.
What is the multiplier from calculating a 45-degree offset when conduit is being bent? -
ANSWERS1.414
Where raceways connect an enclosure required to be dust/ ignition proof to an
enclosure in an UNCLASSIFIED location - ANSWERSNot required.
Which typed of rigid metal conduit would be most appropriate for a corrosive
environment? - ANSWERSStainless steel
A material with poor electrical conducting properties is a good - ANSWERSInsulator
, Insulation on the barrel of crimp connectors for wires sized 22-16 AWG are typically
colored. - ANSWERSRed
A protective device for limiting voltage spikes by discharging or bypassing surge current
is called a - ANSWERSSurge protector.
A Type LB conduit body has the cover on - ANSWERSThe back.
All of the following are common service voltage in the United States EXCEPT -
ANSWERS372/575 three-phase, four-wire.
Why should the test leads of a "megger" NEVER be touched by anyone when in use? -
ANSWERSIt could result in an electrical shock.
What is the purpose of lockout/ tagout? - ANSWERSPrevent 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? - ANSWERS32"
How should heat-shrink insulators be installed? - ANSWERSThe 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 - ANSWERSDe-energized and locked, tagged out, and tested.
In a typical 3 wire start/stop station, where will the incoming control voltage wire be
terminated? - ANSWERSStop button normally closed
Exposed field-routed electrical conduit SHOULD be installed so that it - ANSWERSIs
plumb and level.
Which electrical values CANNOT be tested using a VOM(multimeter)? -
ANSWERSWatts
Who is allowed to remove another electricians tag or lock from any valve, switch, or
piece of equipment without proper authorization? - ANSWERSNo one.
What is the PRIMARY consideration in selecting the rope for a cable pull? -
ANSWERSLow stretch
A 1500 KVA three phase transformer has a secondary voltage of 480/277. What is the
secondary full load amperage? - ANSWERS5.42
What is the MINIMUM distance between raceway entries allowed in a pull box for angle
pills? - ANSWERS6x the largest trade size raceway
