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

1. A 20 kW system has a measured output of 18 kW at STC. What is the total system loss?

A) 20%
B) 15%
C) 10%
D) 5%

2. A 5 kW PV system has a derate factor of 0.82. The site receives 5.5 PSH daily. What is the expected daily AC energy output?

A) 22.55 kWh
B) 25.0 kWh
C) 20.5 kWh
D) 27.5 kWh

3. 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) A close as practicable to the PV array requiring rapid shutdown
C) At point on the residence designated by the AKJ and fire marshal
D) On the rapid shutdown initiation device.

4. A grid-interactive PV system with battery backup is being installed with a ground-mounted PV array located
200 ft, from the inverter and batteries. The dc PV output circuit has overcuit has overcurrent protection rated from 30A. To reduce voltage drop between the array and batteries, the output circuit wire size was determined to be 6 AWG. The fused dc disconnect between the inverted and batteries is rated for 300A. What is the required size of the equipment grounding conductor between the metal battery case and the inverter?

A) 8 AWG
B) 10 AWG
C) 6 AWG
D) 4 AWG

5. A PV system equipped with rapid shutdown requires a label stating ''RAPID SHUTDOWN SWITCH FOR SOLAR PV SYSTEM''.
Which is the BEST description of where this label is required?

A) On or within 3 ft. of the ac disconnect
B) On or within 3 ft. of the ac disconnect
C) On or within 3 ft. of the ac disconnect
D) On or within 3 ft. of the ac disconnect

Solutions: