NABCEP PV SYSTEM INSPECTOR
CERTIFICATION EXAM QUESTION AND
CORRECT ANSWERS(VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A
INSTANT DOWNLOAD PDF
1. What is the primary role of a PV system inspector?
A. To design PV systems
B. To install PV systems
C. To verify that installed PV systems comply with codes, standards, and
approved plans
D. To maintain PV systems
Answer: C
Rationale: The inspector’s role is to confirm compliance with codes, standards,
permits, and approved designs—not to design, install, or maintain systems.
2. Which code is the primary reference for PV system electrical safety in the
United States?
A. International Building Code (IBC)
B. International Residential Code (IRC)
C. National Electrical Code (NEC)
D. NFPA 13
Answer: C
Rationale: The NEC (NFPA 70) governs electrical installations, including PV
systems.
, 3. Article 690 of the NEC specifically addresses:
A. Wind loading
B. Fire suppression
C. Solar photovoltaic systems
D. Energy storage only
Answer: C
Rationale: NEC Article 690 is dedicated to solar photovoltaic systems.
4. A PV system inspector should verify that system components are:
A. Only locally manufactured
B. Oversized for safety
C. Listed and labeled for the intended application
D. Painted for identification
Answer: C
Rationale: NEC requires listed and labeled equipment for safety and compliance.
5. What is the purpose of a site plan during inspection?
A. To show marketing information
B. To verify equipment location, setbacks, and access
C. To calculate energy production
D. To determine financing
Answer: B
Rationale: Site plans confirm layout, clearances, access, and code compliance.
6. Rapid shutdown requirements are primarily intended to protect:
A. Homeowners
B. Utility workers
C. Firefighters and first responders
D. Inspectors
, Answer: C
Rationale: Rapid shutdown reduces voltage to protect first responders during
emergencies.
7. What is the maximum voltage limit for controlled conductors outside the
array boundary under NEC rapid shutdown rules?
A. 600 V
B. 120 V
C. 30 V
D. 1000 V
Answer: C
Rationale: NEC limits voltage to 30 V within 30 seconds for safety.
8. Which document shows how PV modules are attached to the structure?
A. Electrical schematic
B. Structural mounting details
C. Load calculation worksheet
D. Utility interconnection agreement
Answer: B
Rationale: Structural details show attachment methods and load paths.
9. Roof load evaluations are primarily concerned with:
A. Electrical efficiency
B. Dead loads, live loads, wind, and snow
C. Utility requirements
D. Module temperature
Answer: B
Rationale: Structural safety depends on load considerations.
CERTIFICATION EXAM QUESTION AND
CORRECT ANSWERS(VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A
INSTANT DOWNLOAD PDF
1. What is the primary role of a PV system inspector?
A. To design PV systems
B. To install PV systems
C. To verify that installed PV systems comply with codes, standards, and
approved plans
D. To maintain PV systems
Answer: C
Rationale: The inspector’s role is to confirm compliance with codes, standards,
permits, and approved designs—not to design, install, or maintain systems.
2. Which code is the primary reference for PV system electrical safety in the
United States?
A. International Building Code (IBC)
B. International Residential Code (IRC)
C. National Electrical Code (NEC)
D. NFPA 13
Answer: C
Rationale: The NEC (NFPA 70) governs electrical installations, including PV
systems.
, 3. Article 690 of the NEC specifically addresses:
A. Wind loading
B. Fire suppression
C. Solar photovoltaic systems
D. Energy storage only
Answer: C
Rationale: NEC Article 690 is dedicated to solar photovoltaic systems.
4. A PV system inspector should verify that system components are:
A. Only locally manufactured
B. Oversized for safety
C. Listed and labeled for the intended application
D. Painted for identification
Answer: C
Rationale: NEC requires listed and labeled equipment for safety and compliance.
5. What is the purpose of a site plan during inspection?
A. To show marketing information
B. To verify equipment location, setbacks, and access
C. To calculate energy production
D. To determine financing
Answer: B
Rationale: Site plans confirm layout, clearances, access, and code compliance.
6. Rapid shutdown requirements are primarily intended to protect:
A. Homeowners
B. Utility workers
C. Firefighters and first responders
D. Inspectors
, Answer: C
Rationale: Rapid shutdown reduces voltage to protect first responders during
emergencies.
7. What is the maximum voltage limit for controlled conductors outside the
array boundary under NEC rapid shutdown rules?
A. 600 V
B. 120 V
C. 30 V
D. 1000 V
Answer: C
Rationale: NEC limits voltage to 30 V within 30 seconds for safety.
8. Which document shows how PV modules are attached to the structure?
A. Electrical schematic
B. Structural mounting details
C. Load calculation worksheet
D. Utility interconnection agreement
Answer: B
Rationale: Structural details show attachment methods and load paths.
9. Roof load evaluations are primarily concerned with:
A. Electrical efficiency
B. Dead loads, live loads, wind, and snow
C. Utility requirements
D. Module temperature
Answer: B
Rationale: Structural safety depends on load considerations.
