Georgia Electrical Contractor Class II
Examination Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
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1. What is the primary purpose of grounding electrical systems?
A. Reduce voltage drop
B. Prevent short circuits
C. Provide a safe path for fault current
D. Increase current flow
Correct grounding protects people and equipment by safely directing
fault current to earth.
2. Which NEC article primarily covers grounding and bonding?
A. Article 110
B. Article 220
C. Article 250
D. Article 300
Article 250 establishes the requirements for grounding and bonding
of electrical systems.
3. What is the minimum burial depth for rigid metal conduit under a
residential driveway?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
, NEC Table 300.5 specifies burial depths for various wiring methods
and locations.
4. What device protects against ground-fault shock hazards?
A. AFCI
B. Fuse
C. GFCI
D. Circuit breaker
GFCIs are designed to protect people from electrical shock due to
ground faults.
5. Which conductor is intentionally grounded in a typical electrical
system?
A. Equipment grounding conductor
B. Neutral conductor
C. Phase conductor
D. Bonding jumper
The neutral is intentionally grounded to stabilize system voltage.
6. What is the maximum continuous load allowed on a circuit breaker?
A. 100% of rating
B. 90% of rating
C. 80% of rating
D. 70% of rating
Continuous loads must not exceed 80% of the breaker’s rating unless
listed otherwise.
7. Which NEC article covers overcurrent protection?
A. Article 210
B. Article 240
C. Article 250
D. Article 310
Article 240 outlines requirements for overcurrent protection devices.
8. What color insulation is typically used for an equipment grounding
conductor?
A. White
B. Black
C. Red
, D. Green or bare
NEC requires equipment grounding conductors to be green or bare.
9. What is the primary function of bonding?
A. Reduce resistance
B. Increase voltage
C. Ensure electrical continuity and fault current path
D. Improve power quality
Bonding ensures all metal parts are electrically connected to safely
carry fault current.
10. Which type of current is supplied to most residential buildings?
A. Single-phase 120V
B. Single-phase 120/240V
C. Three-phase 208V
D. Three-phase 480V
Most homes receive 120/240V single-phase service.
11. What does NEC Article 110 cover?
A. Wiring methods
B. General requirements for electrical installations
C. Grounding
D. Motors
Article 110 provides general safety and installation rules.
12. What is the minimum working space depth required in front of
electrical panels (up to 150V to ground)?
A. 24 inches
B. 30 inches
C. 36 inches
D. 42 inches
NEC requires a minimum of 36 inches of clear working space.
13. What device is designed to protect against arc faults?
A. GFCI
B. Fuse
C. AFCI
D. Isolator
AFCIs reduce fire hazards caused by arcing conditions.
Examination Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. What is the primary purpose of grounding electrical systems?
A. Reduce voltage drop
B. Prevent short circuits
C. Provide a safe path for fault current
D. Increase current flow
Correct grounding protects people and equipment by safely directing
fault current to earth.
2. Which NEC article primarily covers grounding and bonding?
A. Article 110
B. Article 220
C. Article 250
D. Article 300
Article 250 establishes the requirements for grounding and bonding
of electrical systems.
3. What is the minimum burial depth for rigid metal conduit under a
residential driveway?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
, NEC Table 300.5 specifies burial depths for various wiring methods
and locations.
4. What device protects against ground-fault shock hazards?
A. AFCI
B. Fuse
C. GFCI
D. Circuit breaker
GFCIs are designed to protect people from electrical shock due to
ground faults.
5. Which conductor is intentionally grounded in a typical electrical
system?
A. Equipment grounding conductor
B. Neutral conductor
C. Phase conductor
D. Bonding jumper
The neutral is intentionally grounded to stabilize system voltage.
6. What is the maximum continuous load allowed on a circuit breaker?
A. 100% of rating
B. 90% of rating
C. 80% of rating
D. 70% of rating
Continuous loads must not exceed 80% of the breaker’s rating unless
listed otherwise.
7. Which NEC article covers overcurrent protection?
A. Article 210
B. Article 240
C. Article 250
D. Article 310
Article 240 outlines requirements for overcurrent protection devices.
8. What color insulation is typically used for an equipment grounding
conductor?
A. White
B. Black
C. Red
, D. Green or bare
NEC requires equipment grounding conductors to be green or bare.
9. What is the primary function of bonding?
A. Reduce resistance
B. Increase voltage
C. Ensure electrical continuity and fault current path
D. Improve power quality
Bonding ensures all metal parts are electrically connected to safely
carry fault current.
10. Which type of current is supplied to most residential buildings?
A. Single-phase 120V
B. Single-phase 120/240V
C. Three-phase 208V
D. Three-phase 480V
Most homes receive 120/240V single-phase service.
11. What does NEC Article 110 cover?
A. Wiring methods
B. General requirements for electrical installations
C. Grounding
D. Motors
Article 110 provides general safety and installation rules.
12. What is the minimum working space depth required in front of
electrical panels (up to 150V to ground)?
A. 24 inches
B. 30 inches
C. 36 inches
D. 42 inches
NEC requires a minimum of 36 inches of clear working space.
13. What device is designed to protect against arc faults?
A. GFCI
B. Fuse
C. AFCI
D. Isolator
AFCIs reduce fire hazards caused by arcing conditions.
