TEXAS APPRENTICE ELECTRICIAN LICENSE
1. What is the primary purpose of the National Electrical
Code (NEC)?
A. To provide plumbing standards
B. To regulate utility company rates
C. To establish minimum safety standards for electrical
installations
D. To train electrical inspectors
The NEC is designed to protect people and property from
electrical hazards by establishing minimum safety standards for
electrical installations. It is widely adopted throughout the
United States.
2. Which organization publishes the NEC?
A. OSHA
B. IEEE
C. UL
D. NFPA
The National Fire Protection Association (NFPA) publishes the
NEC every three years to keep electrical safety standards
current.
3. What color insulation is typically used for grounded
conductors in branch circuits?
A. Green
B. Red
C. White or gray
D. Orange
,Grounded conductors, commonly called neutrals, are identified
by white or gray insulation according to NEC requirements.
4. Which conductor is normally used as the equipment
grounding conductor?
A. White
B. Blue
C. Green or bare copper
D. Yellow
Equipment grounding conductors are identified by green
insulation or bare copper to clearly distinguish them from
current-carrying conductors.
5. What does OSHA stand for?
A. Occupational Safety Housing Agency
B. Occupational Safety and Health Administration
C. Occupational Standards and Hazard Association
D. Office of Safety and Hazard Administration
OSHA is the federal agency responsible for workplace safety
regulations and enforcement.
6. What is the minimum working clearance in front of most
electrical panels operating at 0–150 volts to ground?
A. 24 inches
B. 30 inches
C. 36 inches
D. 48 inches
, The NEC generally requires at least 36 inches of clear working
space in front of electrical equipment for safe maintenance and
operation.
7. Which tool is used to measure electrical current?
A. Ohmmeter
B. Voltmeter
C. Ammeter
D. Megger
An ammeter measures the amount of electrical current flowing
through a circuit.
8. What is the formula for electrical power?
A. P = I ÷ V
B. P = V ÷ I
C. P = V × I
D. P = R × I
Electrical power is calculated by multiplying voltage by current.
Power is measured in watts.
9. What unit measures electrical resistance?
A. Volts
B. Watts
C. Amps
D. Ohms
Resistance is measured in ohms and indicates how much a
material opposes current flow.
10. What is the purpose of a circuit breaker?
1. What is the primary purpose of the National Electrical
Code (NEC)?
A. To provide plumbing standards
B. To regulate utility company rates
C. To establish minimum safety standards for electrical
installations
D. To train electrical inspectors
The NEC is designed to protect people and property from
electrical hazards by establishing minimum safety standards for
electrical installations. It is widely adopted throughout the
United States.
2. Which organization publishes the NEC?
A. OSHA
B. IEEE
C. UL
D. NFPA
The National Fire Protection Association (NFPA) publishes the
NEC every three years to keep electrical safety standards
current.
3. What color insulation is typically used for grounded
conductors in branch circuits?
A. Green
B. Red
C. White or gray
D. Orange
,Grounded conductors, commonly called neutrals, are identified
by white or gray insulation according to NEC requirements.
4. Which conductor is normally used as the equipment
grounding conductor?
A. White
B. Blue
C. Green or bare copper
D. Yellow
Equipment grounding conductors are identified by green
insulation or bare copper to clearly distinguish them from
current-carrying conductors.
5. What does OSHA stand for?
A. Occupational Safety Housing Agency
B. Occupational Safety and Health Administration
C. Occupational Standards and Hazard Association
D. Office of Safety and Hazard Administration
OSHA is the federal agency responsible for workplace safety
regulations and enforcement.
6. What is the minimum working clearance in front of most
electrical panels operating at 0–150 volts to ground?
A. 24 inches
B. 30 inches
C. 36 inches
D. 48 inches
, The NEC generally requires at least 36 inches of clear working
space in front of electrical equipment for safe maintenance and
operation.
7. Which tool is used to measure electrical current?
A. Ohmmeter
B. Voltmeter
C. Ammeter
D. Megger
An ammeter measures the amount of electrical current flowing
through a circuit.
8. What is the formula for electrical power?
A. P = I ÷ V
B. P = V ÷ I
C. P = V × I
D. P = R × I
Electrical power is calculated by multiplying voltage by current.
Power is measured in watts.
9. What unit measures electrical resistance?
A. Volts
B. Watts
C. Amps
D. Ohms
Resistance is measured in ohms and indicates how much a
material opposes current flow.
10. What is the purpose of a circuit breaker?
