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

1. 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) 30A
B) 42A
C) 40A
D) 32A

2. A rooftop PV array has conductors running through a conduit exposed to sunlight on a roof with an ambient temperature of 40°C. The conduit is 2 inches above the roof surface. What is the NEC temperature adjustment factor for 90°C-rated conductors?

A) 0.87
B) 0.91
C) 0.96
D) 1.00

3. A site survey indicates a residential roof with a 4:12 pitch facing 20° east of south. The local latitude is 35°N, and the optimal tilt for maximum annual production is equal to latitude. What adjustment should be made to compensate for the roof's orientation and tilt to achieve near-optimal output?

A) No adjustment needed; output loss is negligible
B) Install adjustable racking to match 35° tilt
C) Increase array capacity by 5%
D) Rotate modules 20° west to face true south

4. A PV module is mounted with a 2-inch standoff from a shingle roof. What is the minimum clearance required for fire access per the International Fire Code (IFC)?

A) 6 inches
B) 1 inch
C) 9 inches
D) 3 inches

5. A connector not listed to be used in a concealed location and being used as a disconnect for PV equipment shall comply with which of the following?

A) The connector shall have a non-polarized configuration.
B) The connector shall be installed so as to guard against inadvertent with live parts by persons.
C) The grounding member shall be interconnectchangeable with receptacles in other electrical systems.
D) The grounding member shall be last to make and first to break contact with the mating connector

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