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

1. 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) Grounding bushing
C) Threaded coupling
D) Insulated bushing

2. The point-of-utility connection of a residential utility-interactive PV system is in the main distribution panel.
If the busbars of the main distribution panel are rated at 200A, and if the distribution panel has a 200A main breaker, the rated output current of the inverter cannot exceed.

A) 200A
B) 24A
C) 40A
D) 32A

3. A PV array is installed on a sloped roof with a 6:12 pitch. What is the minimum fastener pullout strength required if the uplift force is 200 lbs per attachment point?

A) 300 lbs
B) 600 lbs
C) 200 lbs
D) 400 lbs

4. A module's power drops by 0.5%/year. After 10 years, what is the output if the original power is 320W?

A) 310W
B) 288W
C) 316W
D) 304W

5. Per NEC 690.4, who is qualified to install a PV system?

A) Only a NABCEP-certified installer
B) Anyone with basic electrical knowledge
C) A licensed electrician or supervised trainee
D) A journeyman with PV experience

Solutions: