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

1. A PV array is located 8 feet from a property line. What is the minimum height above ground for exposed DC conductors per NEC 690.31?

A) 8 feet
B) 10 feet
C) 15 feet
D) 12 feet

2. Which is a requirement for designated battery rooms?

A) Battery cabinets, racks, or trays must have a minimum clearance of 12 in. from any wall.
B) Gas pipe equipment must be constructed and installed for a Hazardous Class I location.
C) illumination shall be provided by lighting outlets controlled by automated means only.
D) must be equipped with panic hardware and open m the direction of egress.

3. A commercial 600v carport-mounted PV system is installed with rigid running under the parking lot to an inverter pad located at the edge of the parking lot. At what depth below the parking lot base MUST condult be buried?

A) 24 in.
B) 36 in.
C) 18 in.
D) 12 in.

4. An installer has decided to use 31 in. long. 3.1/2 in diameter conical ground screws as the footings for a 3.840 W solar electric system. Access to he is too difficult to pour concrete footings. The soll is classified as sandy loam. The design wind speed is 90 mph with an uplift force of 32 ibs/ft2. What is the MINIMUM number of screw required to resist uplift loads?

A) 14
B) 12
C) 10
D) 8

5. A 10 kW PV system produces 8 kW AC under STC. After one year, output drops to 7.2 kW. What is the most likely maintenance issue?

A) Loose connections
B) Soiling on modules
C) Inverter inefficiency
D) Module degradation

Solutions: