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

1. According to the NEC, where on a residential PV system MUST the labeling describing the type of rapid shutdown be located?

A) On or no more than 1 m (3. 3 ft) from the service disconnecting meant
B) At point on the residence designated by the AKJ and fire marshal
C) A close as practicable to the PV array requiring rapid shutdown
D) On the rapid shutdown initiation device.

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

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

3. A PV array is installed with a rapid shutdown system per NEC 690.12. The array is 15 feet from the service entrance. What is the maximum voltage allowed within the array boundary 30 seconds after shutdown initiation?

A) 80V
B) 30V
C) 240V
D) 120V

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

5. A PV system has a nameplate capacity of 10 kW DC and operates with a total system derate factor of 0.85.
What is the expected AC output power under standard test conditions (STC)?

A) 10.0 kW
B) 8.5 kW
C) 9.0 kW
D) 7.5 kW

Solutions: