NABCEP PVIP : PV Installation Professional (PVIP) Board Certification

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

1. How should stratification be eliminated in a set of large, stationary, stationary flooded lead-acid batteries?

A) Rotate the battery positions
B) Add 50% diluted sulfuric acid.
C) Enable equalization.
D) Discharge to 80 depth of discharge.

2. A 15 kW system has a total derate factor of 0.90. After 5 years, output drops by 2% annually due to degradation. What is the AC output in year 5?

A) 11.5 kW
B) 12.9 kW
C) 12.2 kW
D) 13.5 kW

3. A module's power drops by 0.5%/year. After 10 years, what is the output if the original power is 320W?

A) 288W
B) 310W
C) 304W
D) 316W

4. A PV array is located 8 feet from a property line. What is the minimum height above ground for exposed DC conductors per NEC 690.31?

A) 12 feet
B) 15 feet
C) 10 feet
D) 8 feet

5. When performing a system checkout after completing the installation, what is the SAFEST sequence of tasks to detect installation errors before closing any disconnects to the inverter, charge controller, or batteries?

A) Perform visual inspection, check polarity and measure open-circuit voltage.
B) Install source circuit fuses, verify that all equipment-grounding conductors are secure, and measure ac line voltage.
C) Perform visual inspection, install source circuit fuses, and measure open-circuit voltage.
D) Perform visual inspection, install source circuit fuses, and measure open-circuit current.

Solutions: