Electrical Inspector Certification Exam
Preparation Newest With Complete
Questions And Correct Detailed Answers|
Brand New Version
1. What is the primary purpose of the National Electrical Code
(NEC)?
A. To design electrical systems
B. To reduce electrical costs
C. To safeguard persons and property from electrical hazards
D. To regulate utility companies
Answer: C
The NEC is a safety standard focused on preventing electrical fires,
shock, and related hazards.
2. Which NEC article covers grounding and bonding?
A. Article 110
B. Article 250
C. Article 300
D. Article 430
Answer: B
Article 250 establishes requirements for grounding and bonding to
ensure electrical safety.
3. The NEC is updated on what cycle?
A. Every 2 years
B. Every 3 years
,C. Every 4 years
D. Every 5 years
Answer: B
The NEC is revised on a three-year cycle to reflect new technologies
and safety data.
4. What is the minimum working clearance in front of electrical
equipment rated 600V or less?
A. 24 inches
B. 36 inches
C. 42 inches
D. 48 inches
Answer: B
NEC 110.26 requires a minimum of 36 inches of clear working space.
5. Which conductor is intentionally grounded?
A. Equipment grounding conductor
B. Ungrounded conductor
C. Grounded (neutral) conductor
D. Bonding jumper
Answer: C
The neutral conductor is intentionally grounded to stabilize system
voltage.
6. What color insulation is typically used for equipment grounding
conductors?
A. White
B. Black
,C. Red
D. Green or bare
Answer: D
Green or bare conductors identify equipment grounding conductors
per NEC.
7. GFCI protection is required in which location?
A. Living rooms
B. Bedrooms
C. Bathrooms
D. Dining rooms
Answer: C
Bathrooms require GFCI protection due to the presence of moisture.
8. What does AFCI protection primarily protect against?
A. Overcurrent
B. Ground faults
C. Arc faults
D. Short circuits
Answer: C
AFCIs detect dangerous arcing conditions that can cause fires.
9. Which NEC article covers branch circuits?
A. Article 100
B. Article 210
C. Article 210
D. Article 220
, Answer: C
Article 210 governs branch circuit requirements.
10. What is the maximum allowable continuous load on a circuit
breaker?
A. 100%
B. 90%
C. 80%
D. 70%
Answer: C
Continuous loads must not exceed 80% of the circuit rating unless
listed otherwise.
11. Which tool is used to verify absence of voltage?
A. Megohmmeter
B. Clamp ammeter
C. Voltage tester
D. Oscilloscope
Answer: C
Voltage testers confirm whether conductors are energized.
12. What NEC article covers electrical services?
A. Article 210
B. Article 230
C. Article 240
D. Article 300
Answer: B
Article 230 addresses service conductors and equipment.
Preparation Newest With Complete
Questions And Correct Detailed Answers|
Brand New Version
1. What is the primary purpose of the National Electrical Code
(NEC)?
A. To design electrical systems
B. To reduce electrical costs
C. To safeguard persons and property from electrical hazards
D. To regulate utility companies
Answer: C
The NEC is a safety standard focused on preventing electrical fires,
shock, and related hazards.
2. Which NEC article covers grounding and bonding?
A. Article 110
B. Article 250
C. Article 300
D. Article 430
Answer: B
Article 250 establishes requirements for grounding and bonding to
ensure electrical safety.
3. The NEC is updated on what cycle?
A. Every 2 years
B. Every 3 years
,C. Every 4 years
D. Every 5 years
Answer: B
The NEC is revised on a three-year cycle to reflect new technologies
and safety data.
4. What is the minimum working clearance in front of electrical
equipment rated 600V or less?
A. 24 inches
B. 36 inches
C. 42 inches
D. 48 inches
Answer: B
NEC 110.26 requires a minimum of 36 inches of clear working space.
5. Which conductor is intentionally grounded?
A. Equipment grounding conductor
B. Ungrounded conductor
C. Grounded (neutral) conductor
D. Bonding jumper
Answer: C
The neutral conductor is intentionally grounded to stabilize system
voltage.
6. What color insulation is typically used for equipment grounding
conductors?
A. White
B. Black
,C. Red
D. Green or bare
Answer: D
Green or bare conductors identify equipment grounding conductors
per NEC.
7. GFCI protection is required in which location?
A. Living rooms
B. Bedrooms
C. Bathrooms
D. Dining rooms
Answer: C
Bathrooms require GFCI protection due to the presence of moisture.
8. What does AFCI protection primarily protect against?
A. Overcurrent
B. Ground faults
C. Arc faults
D. Short circuits
Answer: C
AFCIs detect dangerous arcing conditions that can cause fires.
9. Which NEC article covers branch circuits?
A. Article 100
B. Article 210
C. Article 210
D. Article 220
, Answer: C
Article 210 governs branch circuit requirements.
10. What is the maximum allowable continuous load on a circuit
breaker?
A. 100%
B. 90%
C. 80%
D. 70%
Answer: C
Continuous loads must not exceed 80% of the circuit rating unless
listed otherwise.
11. Which tool is used to verify absence of voltage?
A. Megohmmeter
B. Clamp ammeter
C. Voltage tester
D. Oscilloscope
Answer: C
Voltage testers confirm whether conductors are energized.
12. What NEC article covers electrical services?
A. Article 210
B. Article 230
C. Article 240
D. Article 300
Answer: B
Article 230 addresses service conductors and equipment.
