ELECTRICAL NCCER 26101-20 EXAM
QUESTIONS AND ANSWERS 2026
Electrical Service - ANSWERSelectrical components that are used to connect the
serving utility to the premises wiring system
Raceway System - ANSWERSEnclosures that house the conductors in an electrical
system (fittings, boxes, conduit)
Rough-in - ANSWERSThe beginning stage of wiring that involves the installation of the
panel board, raceway system, wiring, and boxes
Substation - ANSWERSEnclosed assembly of high voltage equipment
Trim-out - ANSWERSFinal stage of wiring that involves the installation and termination
of devices and fixtures
What is commonly required in commercial electrical work? - ANSWERSFire Alarm
Systems
In industrial facilities, electrical systems are most likely maintained by? - ANSWERSOn
site maintenance personnel
The human body becomes a path for the ___ when in contact with electrically energized
points - ANSWERScurrent
Employers of commercial electricians are often electrical contractors who work as a
subcontractor for.. - ANSWERSgeneral contractors
How is the maritime industry different from the construction industry? -
ANSWERSShipbuilders and ship repair facilities
1910 CFR covers - ANSWERSOSHA standards for general industry
Elimination is - ANSWERSthe best method of reducing a risk is to eliminate the hazard,
using appropriate lock out tag out procedures
What type designates rubber protective equipment that is manufactured of natural or
synthetic rubber that is properly vulcanized.. - ANSWERSType 1
What hard hats have the highest rating and are tested to withstand 20,000VAC? -
ANSWERSClass E
QUESTIONS AND ANSWERS 2026
Electrical Service - ANSWERSelectrical components that are used to connect the
serving utility to the premises wiring system
Raceway System - ANSWERSEnclosures that house the conductors in an electrical
system (fittings, boxes, conduit)
Rough-in - ANSWERSThe beginning stage of wiring that involves the installation of the
panel board, raceway system, wiring, and boxes
Substation - ANSWERSEnclosed assembly of high voltage equipment
Trim-out - ANSWERSFinal stage of wiring that involves the installation and termination
of devices and fixtures
What is commonly required in commercial electrical work? - ANSWERSFire Alarm
Systems
In industrial facilities, electrical systems are most likely maintained by? - ANSWERSOn
site maintenance personnel
The human body becomes a path for the ___ when in contact with electrically energized
points - ANSWERScurrent
Employers of commercial electricians are often electrical contractors who work as a
subcontractor for.. - ANSWERSgeneral contractors
How is the maritime industry different from the construction industry? -
ANSWERSShipbuilders and ship repair facilities
1910 CFR covers - ANSWERSOSHA standards for general industry
Elimination is - ANSWERSthe best method of reducing a risk is to eliminate the hazard,
using appropriate lock out tag out procedures
What type designates rubber protective equipment that is manufactured of natural or
synthetic rubber that is properly vulcanized.. - ANSWERSType 1
What hard hats have the highest rating and are tested to withstand 20,000VAC? -
ANSWERSClass E
