NCCER Core Final Exam Questions and Answers 100% Correct Graded A+ 2026/27
Which of the following BEST describes where the type and size of overcurrent protection is
found? - Floor plans
Electrical charges are measured in: - coulombs
When installing cables smaller than 4/0 in a cable tray, the allowable cable fill area must NOT be
less than - cross-sectional areas
What is the purpose of a lockout tag-out system? - to prevent unexpected energizing of
equipment or systems
Time delay fuses are most commonly used in circuits subject to what type of current? -
Surge
A drawing that shows the heights of an object, but not the depth is a(n) - elevation
drawing
The outer covering on liquid-tight flexible metal conduit is used for - a moisture seal
A conductor with 220 mils of insulation would have insulation thickness of: - 0.22"
All of the following ratings appear on a circuit breaker nameplate Except: - rated wattage
, What is a dropout plate? - metal plate with a curved surface to protect the cable as it
enters
IEC style contact or coil are marked with the labels: - T1 & T2
An insulated type 600 volt crimp terminal for a 16-14 AWG is typically identified by which color
- Blue
Which of the following statements about a service neutral conductor is TRUE? - it may be
smaller than the ungrounded conductors
Which electrical values CANNOT be tested using a VOM? - Watts
What is the voltage drop for a #8 (16,510 cmil) copper wire at 120V, 250ft one way and load of
39 amps? - 10.5
Which type of transformer has its windings connected in series? - a delta transformer
What is insulating tape? - nonconductive adhesive tape?
A conduit brush or conduit swap is used to do what? - remove water, sand, debris and
other light obstruction from the interior of the conduit
Which of the following BEST describes where the type and size of overcurrent protection is
found? - Floor plans
Electrical charges are measured in: - coulombs
When installing cables smaller than 4/0 in a cable tray, the allowable cable fill area must NOT be
less than - cross-sectional areas
What is the purpose of a lockout tag-out system? - to prevent unexpected energizing of
equipment or systems
Time delay fuses are most commonly used in circuits subject to what type of current? -
Surge
A drawing that shows the heights of an object, but not the depth is a(n) - elevation
drawing
The outer covering on liquid-tight flexible metal conduit is used for - a moisture seal
A conductor with 220 mils of insulation would have insulation thickness of: - 0.22"
All of the following ratings appear on a circuit breaker nameplate Except: - rated wattage
, What is a dropout plate? - metal plate with a curved surface to protect the cable as it
enters
IEC style contact or coil are marked with the labels: - T1 & T2
An insulated type 600 volt crimp terminal for a 16-14 AWG is typically identified by which color
- Blue
Which of the following statements about a service neutral conductor is TRUE? - it may be
smaller than the ungrounded conductors
Which electrical values CANNOT be tested using a VOM? - Watts
What is the voltage drop for a #8 (16,510 cmil) copper wire at 120V, 250ft one way and load of
39 amps? - 10.5
Which type of transformer has its windings connected in series? - a delta transformer
What is insulating tape? - nonconductive adhesive tape?
A conduit brush or conduit swap is used to do what? - remove water, sand, debris and
other light obstruction from the interior of the conduit
