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NABCEP PVIP Exam Syllabus Topics:

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

1. A project is using a PV module with a 25-38dc maximum power voltage range and a single input inverter with an operating windows of 250vdc-450dc. The dwelling the system is to be installed on has a 5:12 roof with a southeastem face that can accommodate 14 modules and southwestern face that can accommodate 10 modules. What is the MAXIMUM number of modules that can be installed for proper inverter maximum power point tracking?

A) 18
B) 24
C) 20
D) 14

2. A PV system's inverter displays a ground-fault error. What is the first troubleshooting step?

A) Inspect AC wiring
B) Check array insulation resistance
C) Verify DC disconnect operation
D) Replace the inverter

3. The NEC requires that PV systems installed on dwellings incorporate which of the following components?

A) A lockable utility disconnect at the point-of-utility interconnection
B) Blocking diodes across each module
C) A dc ground-fault protect device
D) Dc lightning surge arrestors

4. 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 connector shall be installed so as to guard against inadvertent with live parts by persons.
B) The grounding member shall be interconnectchangeable with receptacles in other electrical systems.
C) The grounding member shall be last to make and first to break contact with the mating connector
D) The connector shall have a non-polarized configuration.

5. 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) 20.5 kWh
B) 27.5 kWh
C) 22.55 kWh
D) 25.0 kWh

Solutions: