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NABCEP PVIP Exam Syllabus Topics:

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

1. A PV array is installed on a sloped roof with a 6:12 pitch. What is the minimum fastener pullout strength required if the uplift force is 200 lbs per attachment point?

A) 400 lbs
B) 600 lbs
C) 300 lbs
D) 200 lbs

2. A ground-fault protection device (GFPD) trips during commissioning. What is the most likely cause per NEC
690.5?

A) Insulation failure between a conductor and ground
B) Open circuit in the array
C) Overcurrent in the inverter output
D) Reverse polarity in a source circuit

3. Which load path connections need to be analyzed when determining live and dead loads on a PV array system installed directly to a metal seam roof?

A) Module to rail to metal seam roof, metal seam roof sheathing/rather system.
B) Module to rail to metal seam roof, metal seam roof to top plate system
C) Module to rail, rail to roof sheathing, roof sheathing to wall, wall to base plate/foundation system
D) Rail to metal seam roof, metal seam roof to top plate, top plate to wall system

4. A system's inverter efficiency drops from 97% to 94% due to aging. What is the percentage increase in energy loss?

A) 3.2%
B) 2.1%
C) 4.5%
D) 6.0%

5. 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) 11.5 kW
C) 12.5 kW
D) 11.0 kW

Solutions: