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

1. Which of the following MUST be referenced for determining a site's design wind speed?

A) The jurisdiction's local building code in effect
B) The module manufacture's design wind speed
C) The ASHRAE Handbook_fundamentals in effect
D) The NEC version in effect

2. A metal condult containing an array circuit with Vmo of 400Vdc is connected to a metal enclosure at the location where the concentric knockouts have been punched by the manufacturer. Which method of attachment should be used?

A) Sealing locknut
B) Threaded coupling
C) Insulated bushing
D) Grounding bushing

3. A module's Voc is 40V at STC. At -5°C with a coefficient of -0.33%/°C, what is the Voc?

A) 42.0V
B) 44.0V
C) 45.0V
D) 43.0V

4. A customer has a 200A service with a 200A rated panel and 200A main breaker located on the street side of the house. There is a 100A breaker located at the opposite end of busbar feeding a 125A subpanel in the backyard. The customer would like to place the inverter the backyard and use the 125 subpanel. Which MAXIMUM inverter(s) output circuit current could be installed?

A) 32A
B) 42A
C) 30A
D) 40A

5. A PV system includes a 600V DC disconnect with a fault current rating of 10 kA. The available fault current from the inverter is 12 kA. What must be done to comply with NEC 110.10?

A) Replace the disconnect with a 15 kA-rated unit
B) Install a current-limiting fuse upstream
C) No action needed; the rating is sufficient
D) Reduce the array size to lower fault current

Solutions: