Philadelphia Department of Licenses & Inspections
– Electrical Contractor Examination (ICC-based)
Examination Questions and Correct Answers
(Verified Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf
1.
Which organization publishes the National Electrical Code (NEC), which
is widely used as the basis for electrical installation requirements in the
United States?
A. ICC
B. OSHA
C. NFPA
D. ANSI
Answer: C. NFPA
Rationale: The National Fire Protection Association (NFPA) publishes
NFPA 70, the National Electrical Code (NEC). The NEC establishes
,requirements intended to safeguard people and property from hazards
arising from the use of electricity.
2.
What is the primary purpose of the National Electrical Code?
A. To establish electrical utility rates
B. To provide practical safeguards for persons and property from
electrical hazards
C. To establish requirements for manufacturing electrical equipment
D. To regulate electrical contractor business practices exclusively
Answer: B. To provide practical safeguards for persons and property
from electrical hazards
Rationale: The NEC is fundamentally a safety code. Its purpose is to
provide practical safeguards against hazards associated with electricity,
including shock, fire, and other electrical risks.
3.
Which article of the NEC contains the general requirements for branch
circuits?
,A. Article 110
B. Article 210
C. Article 215
D. Article 225
Answer: B. Article 210
Rationale: NEC Article 210 covers branch circuits. It addresses branch-
circuit requirements such as ratings, overcurrent protection, required
outlets, receptacles, and conductor requirements.
4.
Which NEC article generally covers feeders?
A. Article 200
B. Article 210
C. Article 215
D. Article 250
Answer: C. Article 215
Rationale: Article 215 contains requirements for feeders, including
feeder conductor requirements, ampacity, overcurrent protection, and
related provisions.
, 5.
What is the purpose of overcurrent protection?
A. To increase circuit voltage
B. To protect conductors and equipment from excessive current
C. To improve power factor
D. To eliminate the need for grounding
Answer: B. To protect conductors and equipment from excessive
current
Rationale: Overcurrent devices such as circuit breakers and fuses are
intended to protect conductors and equipment from damage caused by
excessive current resulting from overloads or faults.
6.
Which device is specifically designed to interrupt current when a circuit
experiences an overcurrent condition?
A. Transformer
B. Circuit breaker
– Electrical Contractor Examination (ICC-based)
Examination Questions and Correct Answers
(Verified Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf
1.
Which organization publishes the National Electrical Code (NEC), which
is widely used as the basis for electrical installation requirements in the
United States?
A. ICC
B. OSHA
C. NFPA
D. ANSI
Answer: C. NFPA
Rationale: The National Fire Protection Association (NFPA) publishes
NFPA 70, the National Electrical Code (NEC). The NEC establishes
,requirements intended to safeguard people and property from hazards
arising from the use of electricity.
2.
What is the primary purpose of the National Electrical Code?
A. To establish electrical utility rates
B. To provide practical safeguards for persons and property from
electrical hazards
C. To establish requirements for manufacturing electrical equipment
D. To regulate electrical contractor business practices exclusively
Answer: B. To provide practical safeguards for persons and property
from electrical hazards
Rationale: The NEC is fundamentally a safety code. Its purpose is to
provide practical safeguards against hazards associated with electricity,
including shock, fire, and other electrical risks.
3.
Which article of the NEC contains the general requirements for branch
circuits?
,A. Article 110
B. Article 210
C. Article 215
D. Article 225
Answer: B. Article 210
Rationale: NEC Article 210 covers branch circuits. It addresses branch-
circuit requirements such as ratings, overcurrent protection, required
outlets, receptacles, and conductor requirements.
4.
Which NEC article generally covers feeders?
A. Article 200
B. Article 210
C. Article 215
D. Article 250
Answer: C. Article 215
Rationale: Article 215 contains requirements for feeders, including
feeder conductor requirements, ampacity, overcurrent protection, and
related provisions.
, 5.
What is the purpose of overcurrent protection?
A. To increase circuit voltage
B. To protect conductors and equipment from excessive current
C. To improve power factor
D. To eliminate the need for grounding
Answer: B. To protect conductors and equipment from excessive
current
Rationale: Overcurrent devices such as circuit breakers and fuses are
intended to protect conductors and equipment from damage caused by
excessive current resulting from overloads or faults.
6.
Which device is specifically designed to interrupt current when a circuit
experiences an overcurrent condition?
A. Transformer
B. Circuit breaker
