NCCER FINAL TEST QUESTIONS AND
ANSWERS
Which of the following BEST describes where the type and size of overcurrent
protection is found? - ANSWERSFloor plans
Electrical charges are measured in: - ANSWERScoulombs
When installing cables smaller than 4/0 in a cable tray, the allowable cable fill area must
NOT be less than - ANSWERScross-sectional areas
What is the purpose of a lockout tag-out system? - ANSWERSto prevent unexpected
energizing of equipment or systems
Time delay fuses are most commonly used in circuits subject to what type of current? -
ANSWERSSurge
A drawing that shows the heights of an object, but not the depth is a(n) -
ANSWERSelevation drawing
The outer covering on liquid-tight flexible metal conduit is used for - ANSWERSa
moisture seal
A conductor with 220 mils of insulation would have insulation thickness of: -
ANSWERS0.22"
All of the following ratings appear on a circuit breaker nameplate Except: -
ANSWERSrated wattage
What is a dropout plate? - ANSWERSmetal plate with a curved surface to protect the
cable as it enters
IEC style contact or coil are marked with the labels: - ANSWERST1 & T2
An insulated type 600 volt crimp terminal for a 16-14 AWG is typically identified by
which color - ANSWERSBlue
Which of the following statements about a service neutral conductor is TRUE? -
ANSWERSit may be smaller than the ungrounded conductors
Which electrical values CANNOT be tested using a VOM? - ANSWERSWatts
, What is the voltage drop for a #8 (16,510 cmil) copper wire at 120V, 250ft one way and
load of 39 amps? - ANSWERS10.5
Which type of transformer has its windings connected in series? - ANSWERSa delta
transformer
What is insulating tape? - ANSWERSnonconductive adhesive tape?
A conduit brush or conduit swap is used to do what? - ANSWERSremove water, sand,
debris and other light obstruction from the interior of the conduit
Where may nonmetallic conduit (PVC) be used? - ANSWERSboth above and below
ground
Compounds made of porcelain and plastic are used as - ANSWERSinsulators
Eight incandescent lightning fixtures are to be installed. Each fixture is 120 volts, with
200-watt lamp. What is the total connected load? - ANSWERS13.3 amps
What is the main characteristic of a confined space? - ANSWERSlimited access and
egress
Which of the following heat trace cables may NOT be cut to length during installation in
the field? - ANSWERSmineral insulated cables
The neutral bus is a sub panel - ANSWERSterminates bare and neutral wires
a type LB conduit body has the cover on: - ANSWERSthe back
Portable cord-connected hand tools SHALL be double insulated or have -
ANSWERSGFCI protection
The type of support that would be used to eliminate the need to offset the conduit where
there is a fitting is a : - ANSWERSstandoff support
What size wire is needed for a 120V circuit 215ft long one way with a load of 39 amps?
- ANSWERS#8 (16,510 cmil)
What is the symbol for the secondary side of a transformer? - ANSWERSX
What type of conduit can be safely used in a corrosive environment? -
ANSWERSplastic coated RMC galvanized steel
A type "X" conduit body has how many conduit entries? - ANSWERS4
ANSWERS
Which of the following BEST describes where the type and size of overcurrent
protection is found? - ANSWERSFloor plans
Electrical charges are measured in: - ANSWERScoulombs
When installing cables smaller than 4/0 in a cable tray, the allowable cable fill area must
NOT be less than - ANSWERScross-sectional areas
What is the purpose of a lockout tag-out system? - ANSWERSto prevent unexpected
energizing of equipment or systems
Time delay fuses are most commonly used in circuits subject to what type of current? -
ANSWERSSurge
A drawing that shows the heights of an object, but not the depth is a(n) -
ANSWERSelevation drawing
The outer covering on liquid-tight flexible metal conduit is used for - ANSWERSa
moisture seal
A conductor with 220 mils of insulation would have insulation thickness of: -
ANSWERS0.22"
All of the following ratings appear on a circuit breaker nameplate Except: -
ANSWERSrated wattage
What is a dropout plate? - ANSWERSmetal plate with a curved surface to protect the
cable as it enters
IEC style contact or coil are marked with the labels: - ANSWERST1 & T2
An insulated type 600 volt crimp terminal for a 16-14 AWG is typically identified by
which color - ANSWERSBlue
Which of the following statements about a service neutral conductor is TRUE? -
ANSWERSit may be smaller than the ungrounded conductors
Which electrical values CANNOT be tested using a VOM? - ANSWERSWatts
, What is the voltage drop for a #8 (16,510 cmil) copper wire at 120V, 250ft one way and
load of 39 amps? - ANSWERS10.5
Which type of transformer has its windings connected in series? - ANSWERSa delta
transformer
What is insulating tape? - ANSWERSnonconductive adhesive tape?
A conduit brush or conduit swap is used to do what? - ANSWERSremove water, sand,
debris and other light obstruction from the interior of the conduit
Where may nonmetallic conduit (PVC) be used? - ANSWERSboth above and below
ground
Compounds made of porcelain and plastic are used as - ANSWERSinsulators
Eight incandescent lightning fixtures are to be installed. Each fixture is 120 volts, with
200-watt lamp. What is the total connected load? - ANSWERS13.3 amps
What is the main characteristic of a confined space? - ANSWERSlimited access and
egress
Which of the following heat trace cables may NOT be cut to length during installation in
the field? - ANSWERSmineral insulated cables
The neutral bus is a sub panel - ANSWERSterminates bare and neutral wires
a type LB conduit body has the cover on: - ANSWERSthe back
Portable cord-connected hand tools SHALL be double insulated or have -
ANSWERSGFCI protection
The type of support that would be used to eliminate the need to offset the conduit where
there is a fitting is a : - ANSWERSstandoff support
What size wire is needed for a 120V circuit 215ft long one way with a load of 39 amps?
- ANSWERS#8 (16,510 cmil)
What is the symbol for the secondary side of a transformer? - ANSWERSX
What type of conduit can be safely used in a corrosive environment? -
ANSWERSplastic coated RMC galvanized steel
A type "X" conduit body has how many conduit entries? - ANSWERS4
