North Carolina Residential Single-Family Dwelling Electrical Contractor Licensing Exam
QUESTIONS AND CORRECT ANSWERS WITH RATIONALES
Exam coverage
• Residential wiring includes branch circuits service equipment grounding and bonding
• Service equipment must be properly rated installed and accessible
• Branch circuits require suitable conductors and overcurrent protection
• Grounding and bonding provide intended paths for fault conditions
• Overcurrent protection protects conductors and equipment within permitted conditions
• Boxes and raceways protect and route conductors
• Motors and appliances can have specific disconnect and protection requirements
• Special installations may have additional requirements
• Inspection and testing verify installation characteristics
• Electrical safety requires de-energization and verification when possible
,1. A supervisor asks which principle should guide work when residential wiring
includes branch circuits service equipment grounding and bonding Which answer best
applies the underlying residential electrical licensing principle in this situation?
A. Branch circuits require suitable conductors and overcurrent protection.
B. Service equipment must be properly rated installed and accessible.
C. Residential wiring includes branch circuits service equipment grounding and bonding.
D. Grounding and bonding provide intended paths for fault conditions.
Correct answer: C
Rationale: The correct choice is supported because residential wiring includes branch circuits
service equipment grounding and bonding. The other options describe related concepts but do
not directly address the principle tested in this question.
2. Which choice correctly identifies the main reason that service equipment must be
properly rated installed and accessible Which answer best applies the underlying
residential electrical licensing principle in this situation?
A. Service equipment must be properly rated installed and accessible.
B. Grounding and bonding provide intended paths for fault conditions.
C. Overcurrent protection protects conductors and equipment within permitted conditions.
D. Branch circuits require suitable conductors and overcurrent protection.
Correct answer: A
,Rationale: The correct choice is supported because service equipment must be properly rated
installed and accessible. The other options describe related concepts but do not directly
address the principle tested in this question.
3. When evaluating this situation, which statement best applies because branch circuits
require suitable conductors and overcurrent protection Which answer best applies the
underlying residential electrical licensing principle in this situation?
A. Overcurrent protection protects conductors and equipment within permitted conditions.
B. Branch circuits require suitable conductors and overcurrent protection.
C. Grounding and bonding provide intended paths for fault conditions.
D. Boxes and raceways protect and route conductors.
Correct answer: B
Rationale: The correct choice is supported because branch circuits require suitable conductors
and overcurrent protection. The other options describe related concepts but do not directly
address the principle tested in this question.
4. Which response best demonstrates understanding of how grounding and bonding
provide intended paths for fault conditions Which answer best applies the underlying
residential electrical licensing principle in this situation?
A. Motors and appliances can have specific disconnect and protection requirements.
B. Grounding and bonding provide intended paths for fault conditions.
C. Overcurrent protection protects conductors and equipment within permitted conditions.
, D. Boxes and raceways protect and route conductors.
Correct answer: B
Rationale: The correct choice is supported because grounding and bonding provide intended
paths for fault conditions. The other options describe related concepts but do not directly
address the principle tested in this question.
5. An inspector is reviewing the following issue; which explanation is most accurate
because overcurrent protection protects conductors and equipment within permitted
conditions Which answer best applies the underlying residential electrical licensing
principle in this situation?
A. Motors and appliances can have specific disconnect and protection requirements.
B. Overcurrent protection protects conductors and equipment within permitted conditions.
C. Boxes and raceways protect and route conductors.
D. Special installations may have additional requirements.
Correct answer: B
Rationale: The correct choice is supported because overcurrent protection protects conductors
and equipment within permitted conditions. The other options describe related concepts but do
not directly address the principle tested in this question.
6. Which option best describes the relationship between the requirement and the result
when boxes and raceways protect and route conductors Which answer best applies the
underlying residential electrical licensing principle in this situation?
QUESTIONS AND CORRECT ANSWERS WITH RATIONALES
Exam coverage
• Residential wiring includes branch circuits service equipment grounding and bonding
• Service equipment must be properly rated installed and accessible
• Branch circuits require suitable conductors and overcurrent protection
• Grounding and bonding provide intended paths for fault conditions
• Overcurrent protection protects conductors and equipment within permitted conditions
• Boxes and raceways protect and route conductors
• Motors and appliances can have specific disconnect and protection requirements
• Special installations may have additional requirements
• Inspection and testing verify installation characteristics
• Electrical safety requires de-energization and verification when possible
,1. A supervisor asks which principle should guide work when residential wiring
includes branch circuits service equipment grounding and bonding Which answer best
applies the underlying residential electrical licensing principle in this situation?
A. Branch circuits require suitable conductors and overcurrent protection.
B. Service equipment must be properly rated installed and accessible.
C. Residential wiring includes branch circuits service equipment grounding and bonding.
D. Grounding and bonding provide intended paths for fault conditions.
Correct answer: C
Rationale: The correct choice is supported because residential wiring includes branch circuits
service equipment grounding and bonding. The other options describe related concepts but do
not directly address the principle tested in this question.
2. Which choice correctly identifies the main reason that service equipment must be
properly rated installed and accessible Which answer best applies the underlying
residential electrical licensing principle in this situation?
A. Service equipment must be properly rated installed and accessible.
B. Grounding and bonding provide intended paths for fault conditions.
C. Overcurrent protection protects conductors and equipment within permitted conditions.
D. Branch circuits require suitable conductors and overcurrent protection.
Correct answer: A
,Rationale: The correct choice is supported because service equipment must be properly rated
installed and accessible. The other options describe related concepts but do not directly
address the principle tested in this question.
3. When evaluating this situation, which statement best applies because branch circuits
require suitable conductors and overcurrent protection Which answer best applies the
underlying residential electrical licensing principle in this situation?
A. Overcurrent protection protects conductors and equipment within permitted conditions.
B. Branch circuits require suitable conductors and overcurrent protection.
C. Grounding and bonding provide intended paths for fault conditions.
D. Boxes and raceways protect and route conductors.
Correct answer: B
Rationale: The correct choice is supported because branch circuits require suitable conductors
and overcurrent protection. The other options describe related concepts but do not directly
address the principle tested in this question.
4. Which response best demonstrates understanding of how grounding and bonding
provide intended paths for fault conditions Which answer best applies the underlying
residential electrical licensing principle in this situation?
A. Motors and appliances can have specific disconnect and protection requirements.
B. Grounding and bonding provide intended paths for fault conditions.
C. Overcurrent protection protects conductors and equipment within permitted conditions.
, D. Boxes and raceways protect and route conductors.
Correct answer: B
Rationale: The correct choice is supported because grounding and bonding provide intended
paths for fault conditions. The other options describe related concepts but do not directly
address the principle tested in this question.
5. An inspector is reviewing the following issue; which explanation is most accurate
because overcurrent protection protects conductors and equipment within permitted
conditions Which answer best applies the underlying residential electrical licensing
principle in this situation?
A. Motors and appliances can have specific disconnect and protection requirements.
B. Overcurrent protection protects conductors and equipment within permitted conditions.
C. Boxes and raceways protect and route conductors.
D. Special installations may have additional requirements.
Correct answer: B
Rationale: The correct choice is supported because overcurrent protection protects conductors
and equipment within permitted conditions. The other options describe related concepts but do
not directly address the principle tested in this question.
6. Which option best describes the relationship between the requirement and the result
when boxes and raceways protect and route conductors Which answer best applies the
underlying residential electrical licensing principle in this situation?
