NYC Associate Inspector (Electrical)
Exam Practice Questions And Correct
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Rationales 2026 Q&A | Instant
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1. What is the primary purpose of grounding electrical systems?
A. Reduce voltage drop
B. Improve power factor
C. Protect people and equipment from electrical shock
D. Increase current flow
Answer: C
Rationale: Grounding provides a safe path for fault current, reducing shock
and fire hazards.
2. Which NEC article primarily covers grounding and bonding?
A. Article 110
, B. Article 250
C. Article 300
D. Article 430
Answer: B
Rationale: NEC Article 250 addresses grounding and bonding requirements.
3. What device protects against ground-fault current?
A. Circuit breaker
B. Fuse
C. GFCI
D. Surge protector
Answer: C
Rationale: A Ground-Fault Circuit Interrupter detects imbalance and
interrupts power.
4. Conduit used in wet locations must be:
A. EMT only
B. Flexible metal conduit
C. Approved for wet locations
D. PVC prohibited
Answer: C
Rationale: NEC requires conduit suitable for the environmental conditions.
, 5. What color insulation is used for grounded (neutral) conductors?
A. Green
B. Red
C. White or gray
D. Black
Answer: C
Rationale: NEC identifies grounded conductors as white or gray.
6. Which NYC code governs building electrical installations?
A. International Building Code
B. NYC Electrical Code
C. OSHA Standards
D. NFPA 72
Answer: B
Rationale: NYC Electrical Code is the governing local authority.
7. Overcurrent protection devices are designed to protect against:
A. Voltage spikes
B. Excessive current
C. Ground faults only
D. Power loss
, Answer: B
Rationale: These devices interrupt circuits during overloads or short
circuits.
8. What is the minimum working space depth in front of electrical panels
(≤600V)?
A. 24 inches
B. 36 inches
C. 42 inches
D. 48 inches
Answer: B
Rationale: NEC requires at least 36 inches of clear working space.
9. Which instrument measures insulation resistance?
A. Voltmeter
B. Ammeter
C. Ohmmeter
D. Megohmmeter
Answer: D
Rationale: A megohmmeter tests high resistance values of insulation.
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of grounding electrical systems?
A. Reduce voltage drop
B. Improve power factor
C. Protect people and equipment from electrical shock
D. Increase current flow
Answer: C
Rationale: Grounding provides a safe path for fault current, reducing shock
and fire hazards.
2. Which NEC article primarily covers grounding and bonding?
A. Article 110
, B. Article 250
C. Article 300
D. Article 430
Answer: B
Rationale: NEC Article 250 addresses grounding and bonding requirements.
3. What device protects against ground-fault current?
A. Circuit breaker
B. Fuse
C. GFCI
D. Surge protector
Answer: C
Rationale: A Ground-Fault Circuit Interrupter detects imbalance and
interrupts power.
4. Conduit used in wet locations must be:
A. EMT only
B. Flexible metal conduit
C. Approved for wet locations
D. PVC prohibited
Answer: C
Rationale: NEC requires conduit suitable for the environmental conditions.
, 5. What color insulation is used for grounded (neutral) conductors?
A. Green
B. Red
C. White or gray
D. Black
Answer: C
Rationale: NEC identifies grounded conductors as white or gray.
6. Which NYC code governs building electrical installations?
A. International Building Code
B. NYC Electrical Code
C. OSHA Standards
D. NFPA 72
Answer: B
Rationale: NYC Electrical Code is the governing local authority.
7. Overcurrent protection devices are designed to protect against:
A. Voltage spikes
B. Excessive current
C. Ground faults only
D. Power loss
, Answer: B
Rationale: These devices interrupt circuits during overloads or short
circuits.
8. What is the minimum working space depth in front of electrical panels
(≤600V)?
A. 24 inches
B. 36 inches
C. 42 inches
D. 48 inches
Answer: B
Rationale: NEC requires at least 36 inches of clear working space.
9. Which instrument measures insulation resistance?
A. Voltmeter
B. Ammeter
C. Ohmmeter
D. Megohmmeter
Answer: D
Rationale: A megohmmeter tests high resistance values of insulation.
