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

1. A PV system operates at 800V DC. What is the minimum distance for unqualified personnel per NFPA 70E restricted approach boundary?

A) 3 feet
B) 1 foot
C) 10 feet
D) 7 feet

2. An 8 AWG bare copper equipment ground conductor (EGC) is wire tied to the module mounting structure of a commercial rooftop solar array. After a few years of operation, some spots on the EGCbegin to turn a green color and appear to be corroding more significantly that other places. What would the MOST likely cause of the problem?

A) Nyton wire ties in contact with the copper wire
B) A break in the EGC, leaving the array ungrounded
C) Array racking touching the EGC at multiple points
D) Bypass dlode failures inducing current on the EGC

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) 248W
C) 236W
D) 224W

4. A PV module has a temperature coefficient of power of -0.4%/°C and a rated power of 300W at STC (25°C).
What is the expected power output if the module temperature rises to 55°C?

A) 300W
B) 264W
C) 276W
D) 288W

5. A 7KW/ 14 KWh multimode system has been installed at a residence, ac-couple with the customer's existing
6.7kwh ac PV system. The system providers uninterrupted power to a protect loads subpanel, which is connected to a refrigerator, Microwave, 1.0 ton are conditioner, three lightning circuit, and the 6.7kwac PV system. One month later, the homeowner moves additional circuits to the protected loads subpanel, substantially increasing the loads. Why would this cause, the backfed interconnection breaker in the main service panel to trip?

A) The load «the protected loads subpanel exceeds the PV system ac rating by 25%.
B) The total load exceeds the system's energy storage capacity of 14kWh.
C) The toad exceeds the capacity of the interconnection breaker.
D) The main service panel is no longer compliant with NCC 705.12.

Solutions: