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NABCEP PVIP Exam Syllabus Topics:

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

1. A system's annual output decreases by 10% due to shading. The original output was 20,000 kWh. What is the new output?

A) 16,000 kWh
B) 18,000 kWh
C) 19,000 kWh
D) 20,000 kWh

2. A bifacial array gains 15% additional power from rear-side irradiance. If the front-side output is 10 kW, what is the total output?

A) 12.0 kW
B) 11.0 kW
C) 11.5 kW
D) 12.5 kW

3. A residential PV system uses two 120.240Vac utility-interactive inverters with a sealed lead-acid battery energy backup for protected loads. The MOST important protected load consideration when operating in the backup mode is that:

A) All protected loads are connected in multiwire branch circuits.
B) The stand-alone system configuration can adequately supply current to all protected load branch circuit.
C) The protected loads must have automatic restart function.
D) The peak current from the sealed lead- acid batteries must not exceed peak demand currents.

4. A maintenance inspection reveals cracked module glass. What is the immediate action?

A) Disconnect the string
B) Apply sealant to cracks
C) Monitor performance
D) Replace the module

5. A PV system includes a 15 kW array with a maximum power point voltage of 450V and current of 33.33A.
The inverter efficiency is 97%, and the AC output voltage is 240V. What is the AC output current under STC?

A) 58.5A
B) 62.5A
C) 60.6A
D) 64.8A

Solutions: