NABCEP PVIP : PV Installation Professional (PVIP) Board Certification

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NABCEP PVIP Exam Syllabus Topics:

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

Question #1
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 toad exceeds the capacity of the interconnection breaker.
B. The total load exceeds the system's energy storage capacity of 14kWh.
C. The main service panel is no longer compliant with NCC 705.12.
D. The load «the protected loads subpanel exceeds the PV system ac rating by 25%.

Question #2
Thermal imaging infrared cameras can be used to help find which of the following system operational issues?

A. Battery state of charge in a multimode system
B. Intensity of solar insolation to determine power output
C. Loose PV input circuit terminations in a combiner box
D. Blind spot fault in a source circuit

Question #3
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. Loose module connections
B. Pinched module wiring
C. High voltage
D. Intermittent ground connections

Question #4
An installer is hired to troubleshoot a 10-year-old roottop system with open-circuit voltage of 300V. The ground-fault detection (GFD) device has tripped. The insulation on the exposed source circuit cables has deterlorated with multiple cracks and has no flexibility. Which concern is the MOST likely safely issue when servicing this array?

A. Cracked insulation has allowed water intrusion that resulted in oxidation of the copper conductors.
B. Short-circuit current is present at the PV source-circuit terminals of the disconnect device because of electrical leakage.
C. Insulation has become an electrical conductor since it has changed its composition.
D. Ungrounded conductors are conducing current event the ground-fault device has activated.

Question #5
A system's performance ratio (PR) is calculated as 0.85. If the array capacity is 10 kW and PSH is 5, what is the daily AC output?

A. 45 kWh
B. 42.5 kWh
C. 50 kWh
D. 40 kWh

Solutions: