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NABCEP PVIP Exam Syllabus Topics:

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

Question 1

A 12 kW array has a measured output of 10 kW at STC due to mismatch losses. What is the mismatch loss percentage?

A. 15%
B. 10%
C. 12%
D. 16.7%

Question 2

A PV system includes a 600V DC disconnect with a fault current rating of 10 kA. The available fault current from the inverter is 12 kA. What must be done to comply with NEC 110.10?

A. Reduce the array size to lower fault current
B. Install a current-limiting fuse upstream
C. Replace the disconnect with a 15 kA-rated unit
D. No action needed; the rating is sufficient

Question 3

A rooftop PV system is proposed for a commercial building with a membrane roof. The structural engineer specifies a maximum allowable dead load of 5 psf. The PV modules weigh 3 psf, and the racking adds 1.5 psf.
What additional load can be added without exceeding the limit?

A. 1.5 psf
B. 0.5 psf
C. 1.0 psf
D. 0 psf

Question 4

A PV system is designed with a 48V battery bank and a 5 kW inverter. The load requires 20 kWh/day, and the system must have 2 days of autonomy with a maximum depth of discharge (DoD) of 50%. What is the minimum battery capacity required in Ah?

A. 1000 Ah
B. 417 Ah
C. 1667 Ah
D. 833 Ah

Question 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: