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NABCEP PVIP Exam Syllabus Topics:

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

1. When installing a ground-mounted PV array, which of the following grounding methods complies with NEC Article 690 requirements for equipment grounding?

A) Installing a ground-fault circuit interrupter (GFCI) on the DC side of the system
B) Bonding all metal parts to the equipment grounding conductor tied to the main service ground
C) Using a grounding electrode conductor connected to a separate ground rod for each array
D) Connecting the module frames to the racking with bare copper wire only

2. Which temperature coefficient is used in the calculation to verify energy production of a PV system?

A) OptionC
B) OptionB
C) OptionA
D) OptionD

3. A module's power is 340W at STC. At 700 W/m² and 40°C with a coefficient of -0.38%/°C, what is the output?

A) 260W
B) 224W
C) 236W
D) 248W

4. Inspection of a new PV installation shows that the dwelling uses a galvanized water pipe for its grounding electrode and that the PV system now shares the connection. Which of the following is an acceptable supplemental electrode method to ensure the integrity of having a grounding electrode?

A) Connecting the service panel to an auxiliary ground used by a lightning protection system
B) Connecting the water pipe to a gas pipe that is known to be solidly grounded
C) Connecting the water pipe to the service entrance panel metal structure
D) Connection the service panel to a copper-clad steel ground rod near the panel

5. During commissioning, a PV system's measured Voc is 10% lower than expected. What is the most likely cause?

A) Open circuit in a string
B) Shading on one module
C) High ambient temperature
D) Inverter malfunction

Solutions: