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

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

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

2. A PV module is mounted with a 2-inch standoff from a shingle roof. What is the minimum clearance required for fire access per the International Fire Code (IFC)?

A) 9 inches
B) 3 inches
C) 6 inches
D) 1 inch

3. A PV array is tested with an IV curve tracer. The fill factor is 0.70, lower than the expected 0.80. What does this indicate?

A) Short-circuit current rise
B) Shunt resistance decrease
C) Series resistance increase
D) Open-circuit voltage drop

4. A metal condult containing an array circuit with Vmo of 400Vdc is connected to a metal enclosure at the location where the concentric knockouts have been punched by the manufacturer. Which method of attachment should be used?

A) Grounding bushing
B) Sealing locknut
C) Threaded coupling
D) Insulated bushing

5. What is an arc-flash boundary?

A) The approach limit distance from energized electrical equipment within which a person is considered to be exposed to full circuit voltage.
B) The approach limit distance within which a person could receive a second-degree burn in the event that an electrical arc flash were to occur
C) The approach limit distance within which inadvertent movement exposes personnel to increase ris due to electrical arc-over potential.
D) The distance within which qualified personnel can safely perform bare-handed work on exposed energized electrical equipment operating at 50 volts or more.

Solutions: