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NABCEP PV Installation Professional (PVIP) Board Certification Sample Questions:
1. An installer troubleshooting a ground-mounted array finds It to be performing as expected most of the time, but a ground-fault error is indicated on hot days. The inverter is in a shaded location. Which of the following should the installer check for FIRST when troubleshooting this array?
A) Pinched module wiring
B) Loose module connections
C) Intermittent ground connections
D) High voltage
2. 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 grounding member shall be last to make and first to break contact with the mating connector
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 connector shall have a non-polarized configuration.
3. 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) 20.5 kWh
C) 27.5 kWh
D) 25.0 kWh
4. 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) On the rapid shutdown initiation device.
C) A close as practicable to the PV array requiring rapid shutdown
D) At point on the residence designated by the AKJ and fire marshal
5. A PV system requires labeling per NEC 690.56. Which of the following must be posted at the point of interconnection?
A) "PV System Disconnect"
B) "Maximum AC Voltage"
C) "Do Not Disconnect Under Load"
D) "Warning: Dual Power Sources"
Solutions:
Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: D |