Georgia Electrical Contractor Class II Exam
–Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the maximum overcurrent protection allowed for a 14
AWG copper conductor used in general wiring?
A. 10 amps
B. 15 amps
C. 20 amps
D. 25 amps
Rationale: According to NEC Table 310.15(B)(16), a 14 AWG
copper conductor is rated for 20 amps maximum in general use.
2. Which type of wiring method is typically used for concealed work
in finished buildings?
A. Rigid metal conduit
B. Surface metal raceway
C. Nonmetallic sheathed cable (NM cable)
D. Underground feeder cable
Rationale: NM cable (Romex) is commonly used for concealed
wiring in residential and commercial finished buildings.
3. The grounding conductor in a branch circuit is used primarily to:
A. Carry normal load current
, B. Carry fault current safely to prevent shock
C. Increase voltage
D. Insulate the circuit
Rationale: The grounding conductor provides a low-resistance
path to ground in case of a fault, minimizing shock risk.
4. A 120/240V single-phase service has three wires. How are they
configured?
A. Two hots, one neutral
B. Two hots, one neutral
C. One hot, two neutrals
D. Three hots
Rationale: Standard single-phase service uses two hot legs (each
120V to neutral) and one neutral for 240V loads.
5. What is the primary purpose of a circuit breaker?
A. Store energy
B. Convert AC to DC
C. Protect conductors from overloads and short circuits
D. Measure voltage
Rationale: Circuit breakers interrupt current flow when
overcurrent conditions occur, protecting wiring and equipment.
6. In residential installations, which color is commonly used for the
grounded conductor?
A. Red
B. White
C. Black
D. Green
, Rationale: NEC requires the neutral (grounded) conductor to be
white or gray in color.
7. The NEC requires that GFCI protection be installed in which
locations?
A. Dry closets
B. Bathrooms, kitchens, garages, and outdoor receptacles
C. Living rooms
D. Hallways
Rationale: NEC Article 210.8 specifies areas with water or damp
conditions require GFCI protection.
8. What type of device is used to step down voltage in a circuit?
A. Circuit breaker
B. Capacitor
C. Transformer
D. Conduit
Rationale: Transformers reduce voltage from one level to
another for safe distribution and utilization.
9. Which type of conduit is required for outdoor underground
installations?
A. EMT
B. FMC
C. PVC Schedule 40 or 80
D. NM cable
Rationale: PVC conduit is rated for underground use, providing
protection against moisture and physical damage.
10. A 3-way switch allows control of a light from how many
locations?
–Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the maximum overcurrent protection allowed for a 14
AWG copper conductor used in general wiring?
A. 10 amps
B. 15 amps
C. 20 amps
D. 25 amps
Rationale: According to NEC Table 310.15(B)(16), a 14 AWG
copper conductor is rated for 20 amps maximum in general use.
2. Which type of wiring method is typically used for concealed work
in finished buildings?
A. Rigid metal conduit
B. Surface metal raceway
C. Nonmetallic sheathed cable (NM cable)
D. Underground feeder cable
Rationale: NM cable (Romex) is commonly used for concealed
wiring in residential and commercial finished buildings.
3. The grounding conductor in a branch circuit is used primarily to:
A. Carry normal load current
, B. Carry fault current safely to prevent shock
C. Increase voltage
D. Insulate the circuit
Rationale: The grounding conductor provides a low-resistance
path to ground in case of a fault, minimizing shock risk.
4. A 120/240V single-phase service has three wires. How are they
configured?
A. Two hots, one neutral
B. Two hots, one neutral
C. One hot, two neutrals
D. Three hots
Rationale: Standard single-phase service uses two hot legs (each
120V to neutral) and one neutral for 240V loads.
5. What is the primary purpose of a circuit breaker?
A. Store energy
B. Convert AC to DC
C. Protect conductors from overloads and short circuits
D. Measure voltage
Rationale: Circuit breakers interrupt current flow when
overcurrent conditions occur, protecting wiring and equipment.
6. In residential installations, which color is commonly used for the
grounded conductor?
A. Red
B. White
C. Black
D. Green
, Rationale: NEC requires the neutral (grounded) conductor to be
white or gray in color.
7. The NEC requires that GFCI protection be installed in which
locations?
A. Dry closets
B. Bathrooms, kitchens, garages, and outdoor receptacles
C. Living rooms
D. Hallways
Rationale: NEC Article 210.8 specifies areas with water or damp
conditions require GFCI protection.
8. What type of device is used to step down voltage in a circuit?
A. Circuit breaker
B. Capacitor
C. Transformer
D. Conduit
Rationale: Transformers reduce voltage from one level to
another for safe distribution and utilization.
9. Which type of conduit is required for outdoor underground
installations?
A. EMT
B. FMC
C. PVC Schedule 40 or 80
D. NM cable
Rationale: PVC conduit is rated for underground use, providing
protection against moisture and physical damage.
10. A 3-way switch allows control of a light from how many
locations?
