Georgia Electrical Contractor Class Ii
Examination Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
Question 1
Which NEC article primarily governs general requirements for electrical
installations?
A. Article 110
B. Article 250
C. Article 300
D. Article 430
Correct Answer: A
Rationale: Article 110 of the NEC covers general requirements for electrical
installations, including approvals, workmanship, mechanical execution, and
electrical connections. It forms the foundational rules that apply across most
electrical work. Other articles such as 250 (grounding), 300 (wiring methods),
and 430 (motors) are specialized sections, but 110 is the overarching compliance
section.
Question 2
What is the minimum burial depth for PVC conduit under a residential driveway
(typical NEC requirement)?
A. 12 inches
,B. 18 inches
C. 24 inches
D. 6 inches
Correct Answer: B
Rationale: The NEC generally requires nonmetallic conduit like PVC under
residential driveways to be buried at least 18 inches deep. This depth protects
against physical damage from vehicles and ground movement. Shallower depths
may be allowed only with additional protection such as concrete encasement or
specific code allowances.
Question 3
Which conductor is required to be grounded in a typical single-phase 120/240V
system?
A. Hot conductor
B. Neutral conductor
C. Equipment grounding conductor
D. All conductors
Correct Answer: C
Rationale: The equipment grounding conductor is required to be grounded to
provide a low-resistance path for fault current. This ensures that overcurrent
devices trip quickly during faults. The neutral is grounded at the service
disconnect, but it is not the equipment grounding conductor.
Question 4
What is the maximum voltage drop recommended for branch circuits?
A. 1%
B. 3%
C. 5%
D. 10%
Correct Answer: D
,Rationale: NEC recommendations suggest a maximum of 3% for branch circuits
and 5% total combined feeder and branch circuit voltage drop. However, 10% is
often considered the upper acceptable limit in field practice for minimal
performance degradation. Excessive voltage drop reduces equipment efficiency
and can cause malfunction.
Question 5
Which device is designed to protect against ground-fault leakage current?
A. Circuit breaker
B. Fuse
C. GFCI
D. Disconnect switch
Correct Answer: C
Rationale: A Ground Fault Circuit Interrupter (GFCI) detects imbalance between
hot and neutral conductors, indicating leakage current. It trips rapidly to prevent
shock hazards. Circuit breakers and fuses protect against overcurrent, not
ground-fault leakage specifically.
Question 6
What is the primary purpose of a transformer?
A. Increase resistance
B. Change voltage levels
C. Store electrical energy
D. Convert AC to DC
Correct Answer: B
Rationale: Transformers operate on electromagnetic induction to step voltage
up or down without changing frequency. They are essential in power distribution
systems. They do not convert AC to DC or store energy like batteries.
, Question 7
Which NEC article covers motors?
A. Article 250
B. Article 430
C. Article 310
D. Article 725
Correct Answer: C
Rationale: Article 430 of the NEC provides requirements for motors, motor
circuits, controllers, and overload protection. It includes sizing conductors,
protection devices, and installation rules. Other articles cover different aspects
like grounding (250) or conductors (310).
Question 8
What is the minimum clearance for overhead service conductors above residential
property?
A. 10 ft
B. 12 ft
C. 15 ft
D. 18 ft
Correct Answer: D
Rationale: Overhead service conductors must maintain sufficient clearance to
prevent accidental contact. NEC typically requires at least 18 feet over
residential driveways. This ensures safety for vehicles, equipment, and
pedestrians.
Question 9
Which device protects circuits from overcurrent conditions?
A. GFCI
B. AFCI
C. Circuit breaker
Examination Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
Question 1
Which NEC article primarily governs general requirements for electrical
installations?
A. Article 110
B. Article 250
C. Article 300
D. Article 430
Correct Answer: A
Rationale: Article 110 of the NEC covers general requirements for electrical
installations, including approvals, workmanship, mechanical execution, and
electrical connections. It forms the foundational rules that apply across most
electrical work. Other articles such as 250 (grounding), 300 (wiring methods),
and 430 (motors) are specialized sections, but 110 is the overarching compliance
section.
Question 2
What is the minimum burial depth for PVC conduit under a residential driveway
(typical NEC requirement)?
A. 12 inches
,B. 18 inches
C. 24 inches
D. 6 inches
Correct Answer: B
Rationale: The NEC generally requires nonmetallic conduit like PVC under
residential driveways to be buried at least 18 inches deep. This depth protects
against physical damage from vehicles and ground movement. Shallower depths
may be allowed only with additional protection such as concrete encasement or
specific code allowances.
Question 3
Which conductor is required to be grounded in a typical single-phase 120/240V
system?
A. Hot conductor
B. Neutral conductor
C. Equipment grounding conductor
D. All conductors
Correct Answer: C
Rationale: The equipment grounding conductor is required to be grounded to
provide a low-resistance path for fault current. This ensures that overcurrent
devices trip quickly during faults. The neutral is grounded at the service
disconnect, but it is not the equipment grounding conductor.
Question 4
What is the maximum voltage drop recommended for branch circuits?
A. 1%
B. 3%
C. 5%
D. 10%
Correct Answer: D
,Rationale: NEC recommendations suggest a maximum of 3% for branch circuits
and 5% total combined feeder and branch circuit voltage drop. However, 10% is
often considered the upper acceptable limit in field practice for minimal
performance degradation. Excessive voltage drop reduces equipment efficiency
and can cause malfunction.
Question 5
Which device is designed to protect against ground-fault leakage current?
A. Circuit breaker
B. Fuse
C. GFCI
D. Disconnect switch
Correct Answer: C
Rationale: A Ground Fault Circuit Interrupter (GFCI) detects imbalance between
hot and neutral conductors, indicating leakage current. It trips rapidly to prevent
shock hazards. Circuit breakers and fuses protect against overcurrent, not
ground-fault leakage specifically.
Question 6
What is the primary purpose of a transformer?
A. Increase resistance
B. Change voltage levels
C. Store electrical energy
D. Convert AC to DC
Correct Answer: B
Rationale: Transformers operate on electromagnetic induction to step voltage
up or down without changing frequency. They are essential in power distribution
systems. They do not convert AC to DC or store energy like batteries.
, Question 7
Which NEC article covers motors?
A. Article 250
B. Article 430
C. Article 310
D. Article 725
Correct Answer: C
Rationale: Article 430 of the NEC provides requirements for motors, motor
circuits, controllers, and overload protection. It includes sizing conductors,
protection devices, and installation rules. Other articles cover different aspects
like grounding (250) or conductors (310).
Question 8
What is the minimum clearance for overhead service conductors above residential
property?
A. 10 ft
B. 12 ft
C. 15 ft
D. 18 ft
Correct Answer: D
Rationale: Overhead service conductors must maintain sufficient clearance to
prevent accidental contact. NEC typically requires at least 18 feet over
residential driveways. This ensures safety for vehicles, equipment, and
pedestrians.
Question 9
Which device protects circuits from overcurrent conditions?
A. GFCI
B. AFCI
C. Circuit breaker
