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

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

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

2. According to the NEC, if the PV system disconnect and the building service disconnect are at different locations, there MUST be a/an:

A) Means of locking out both disconnects when the PV system inverter is being serviced.
B) Permanent plaque or directory that indicates the location of the PV utility connection.
C) Permanent plaque or directory that indicates the locations of both disconnects.
D) Interface that shuts down the PV system if the utility connection is lost.

3. Per NEC 690.11, what is the maximum allowable DC voltage for a PV system requiring arc-fault circuit protection?

A) 150V
B) 80V
C) 600V
D) 1000V

4. Which insulation color is allowed for a current-carrying root top dc conductor on a functionally grounded 6kw PV system?

A) Green/yellow
B) Red
C) White
D) Green

5. A site has a known magnetic declination of 14 west. What should the corrected azimuth reading of the array be in order to be facing true south?

A) 270
B) 194
C) 166
D) 180

Solutions: