NCCER module 26101-20
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
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1. How many hours of OJL (On-the-Job Learning) and classroom instruction are required in
an electrical apprenticeship program?
a. 1,000 OJL and 72 classroom hours
b. 2,000 OJL and 144 classroom hours
c. 4,000 OJL and 288 classroom hours
d. 8,000 OJL and 576 classroom hours
Correct Answer: b. 2,000 OJL and 144 classroom hours
2. Which agency is responsible for supervising workplace health and safety?
a. NEC
b. NFPA
c. OSHA
d. DOL
Correct Answer: c. OSHA
3. Commercial wiring is most commonly installed in:
a. Romex cable
b. Metal conduit
c. Extension cords
d. Flexible tubing only
Correct Answer: b. Metal conduit
4. Residential wiring is commonly installed using:
a. Metal conduit only
b. Armored cable only
c. Romex or non-metallic sheathed cable
, d. Bus duct systems
Correct Answer: c. Romex or non-metallic sheathed cable
5. Minimum standards for apprenticeship training are established by the:
a. OSHA
b. NEC
c. DOL
d. EPA
Correct Answer: c. DOL
6. Job-related learning acquired while working is known as:
a. Continuing Education
b. OJL (On-the-Job Learning)
c. Classroom Instruction
d. Skills Assessment
Correct Answer: b. OJL (On-the-Job Learning)
7. What connects the service utility to the premises wiring system?
a. Panelboard
b. Branch circuit
c. Electrical service
d. Disconnect switch
Correct Answer: c. Electrical service
8. Devices and fixtures are typically installed during which phase of construction?
a. Planning
b. Rough-in
c. Trim-out
d. Demolition
Correct Answer: c. Trim-out
9. An enclosure that includes transformers, circuit breakers, buses, and other components
involved in the transmission and distribution of electricity is called a:
a. Switch box
b. Service panel
c. Substation
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf
1. How many hours of OJL (On-the-Job Learning) and classroom instruction are required in
an electrical apprenticeship program?
a. 1,000 OJL and 72 classroom hours
b. 2,000 OJL and 144 classroom hours
c. 4,000 OJL and 288 classroom hours
d. 8,000 OJL and 576 classroom hours
Correct Answer: b. 2,000 OJL and 144 classroom hours
2. Which agency is responsible for supervising workplace health and safety?
a. NEC
b. NFPA
c. OSHA
d. DOL
Correct Answer: c. OSHA
3. Commercial wiring is most commonly installed in:
a. Romex cable
b. Metal conduit
c. Extension cords
d. Flexible tubing only
Correct Answer: b. Metal conduit
4. Residential wiring is commonly installed using:
a. Metal conduit only
b. Armored cable only
c. Romex or non-metallic sheathed cable
, d. Bus duct systems
Correct Answer: c. Romex or non-metallic sheathed cable
5. Minimum standards for apprenticeship training are established by the:
a. OSHA
b. NEC
c. DOL
d. EPA
Correct Answer: c. DOL
6. Job-related learning acquired while working is known as:
a. Continuing Education
b. OJL (On-the-Job Learning)
c. Classroom Instruction
d. Skills Assessment
Correct Answer: b. OJL (On-the-Job Learning)
7. What connects the service utility to the premises wiring system?
a. Panelboard
b. Branch circuit
c. Electrical service
d. Disconnect switch
Correct Answer: c. Electrical service
8. Devices and fixtures are typically installed during which phase of construction?
a. Planning
b. Rough-in
c. Trim-out
d. Demolition
Correct Answer: c. Trim-out
9. An enclosure that includes transformers, circuit breakers, buses, and other components
involved in the transmission and distribution of electricity is called a:
a. Switch box
b. Service panel
c. Substation
