Georgia Electrical Contractor Class Ii
Examination Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of the National Electrical Code (NEC)?
A. To design electrical utility grids
B. To establish minimum safety requirements for electrical installations
C. To replace state electrical laws
D. To regulate electrical product pricing
Rationale: The NEC is not a design manual or pricing regulation document;
rather, it establishes minimum safety standards to protect people and property
from electrical hazards. It is widely adopted by jurisdictions as a baseline for
safe electrical installation practices.
2. Which device is primarily used to protect against overloads and short
circuits in residential circuits?
A. Transformer
B. Switchgear
C. Circuit breaker
D. Capacitor
Rationale: A circuit breaker automatically interrupts current flow during
overload or short-circuit conditions, preventing overheating and fire hazards.
,Unlike transformers or capacitors, its primary function is protective interruption
of current flow.
3. What is the standard color of the grounding conductor in modern wiring
systems?
A. White
B. Green or bare copper
C. Red
D. Blue
Rationale: The grounding conductor is required to be green or bare copper under
NEC rules to clearly distinguish it from current-carrying conductors. This prevents
wiring errors and enhances system safety.
4. What is the function of a GFCI device?
A. Increase voltage stability
B. Store electrical energy
C. Protect against overloads
D. Protect against ground-fault shock hazards
Rationale: A Ground Fault Circuit Interrupter (GFCI) detects leakage current to
ground and quickly shuts off power to prevent electric shock, especially in wet or
damp locations such as bathrooms and kitchens.
5. What is the minimum burial depth for PVC conduit used in residential
branch circuits under typical conditions?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
, Rationale: PVC conduit typically requires 18–24 inches of burial depth depending
on conditions and wiring method, with 24 inches commonly required for
residential branch circuits to ensure protection from physical damage.
6. What does Ohm’s Law state?
A. Power equals voltage times resistance
B. Current equals voltage divided by resistance
C. Voltage equals current times power
D. Resistance equals current times voltage
Rationale: Ohm’s Law defines the relationship between voltage, current, and
resistance as I = V/R, which is fundamental for electrical calculations and system
design.
7. What is the purpose of a transformer?
A. Store electrical energy
B. Step voltage up or down using electromagnetic induction
C. Convert AC to DC
D. Protect circuits from overload
Rationale: Transformers operate on electromagnetic induction to increase or
decrease AC voltage levels, enabling efficient power transmission and
distribution.
8. Which wire is typically used as a neutral conductor?
A. Black
B. White
C. Green
D. Orange
Rationale: The white wire is designated as the neutral conductor, providing a
return path for current in AC circuits and maintaining system balance.
Examination Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of the National Electrical Code (NEC)?
A. To design electrical utility grids
B. To establish minimum safety requirements for electrical installations
C. To replace state electrical laws
D. To regulate electrical product pricing
Rationale: The NEC is not a design manual or pricing regulation document;
rather, it establishes minimum safety standards to protect people and property
from electrical hazards. It is widely adopted by jurisdictions as a baseline for
safe electrical installation practices.
2. Which device is primarily used to protect against overloads and short
circuits in residential circuits?
A. Transformer
B. Switchgear
C. Circuit breaker
D. Capacitor
Rationale: A circuit breaker automatically interrupts current flow during
overload or short-circuit conditions, preventing overheating and fire hazards.
,Unlike transformers or capacitors, its primary function is protective interruption
of current flow.
3. What is the standard color of the grounding conductor in modern wiring
systems?
A. White
B. Green or bare copper
C. Red
D. Blue
Rationale: The grounding conductor is required to be green or bare copper under
NEC rules to clearly distinguish it from current-carrying conductors. This prevents
wiring errors and enhances system safety.
4. What is the function of a GFCI device?
A. Increase voltage stability
B. Store electrical energy
C. Protect against overloads
D. Protect against ground-fault shock hazards
Rationale: A Ground Fault Circuit Interrupter (GFCI) detects leakage current to
ground and quickly shuts off power to prevent electric shock, especially in wet or
damp locations such as bathrooms and kitchens.
5. What is the minimum burial depth for PVC conduit used in residential
branch circuits under typical conditions?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
, Rationale: PVC conduit typically requires 18–24 inches of burial depth depending
on conditions and wiring method, with 24 inches commonly required for
residential branch circuits to ensure protection from physical damage.
6. What does Ohm’s Law state?
A. Power equals voltage times resistance
B. Current equals voltage divided by resistance
C. Voltage equals current times power
D. Resistance equals current times voltage
Rationale: Ohm’s Law defines the relationship between voltage, current, and
resistance as I = V/R, which is fundamental for electrical calculations and system
design.
7. What is the purpose of a transformer?
A. Store electrical energy
B. Step voltage up or down using electromagnetic induction
C. Convert AC to DC
D. Protect circuits from overload
Rationale: Transformers operate on electromagnetic induction to increase or
decrease AC voltage levels, enabling efficient power transmission and
distribution.
8. Which wire is typically used as a neutral conductor?
A. Black
B. White
C. Green
D. Orange
Rationale: The white wire is designated as the neutral conductor, providing a
return path for current in AC circuits and maintaining system balance.
