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NABCEP PV Installation Professional (PVIP) Board Certification Sample Questions:

1. When doing initial inspections on a PV system that was installed using racking that is not compliant with UL.
2703, an inspector should pay special attention to which electrical attribute?

A) The grounding conductor must be bonded directly to the primary grounding electrode.
B) Racking needs to be bonded to a supplemental grounding electrode conductor.
C) Each PV module needs to be bonded to the equipment grounding conductor.
D) The equipment grounding conductor must be irreversibly spliced.

2. A module's Isc is 8.5A at STC. At 1200 W/m², what is the Isc?

A) 9.5A
B) 11.5A
C) 10.8A
D) 10.2A

3. A module's STC power is 300W, with a temperature coefficient of -0.40%/°C. At 65°C, what is the power loss percentage?

A) 16%
B) 12%
C) 14%
D) 18%

4. A PV array produces 10 kW at 25°C. At 50°C with a coefficient of -0.45%/°C, what is the output?

A) 9.1 kW
B) 9.5 kW
C) 8.9 kW
D) 9.3 kW

5. A PV array's tilt is 30° at a latitude of 40°N. What is the winter energy loss compared to optimal tilt?

A) 5-10%
B) 15-20%
C) 10-15%
D) 20-25%

Solutions: