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NABCEP PVIP Exam Syllabus Topics:

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

1. A tap conduct is to be connected to a feeder supplied by both a utility service source and a utility-interactive inverter source. The feeder utility source is a 400A breaker in a service panel, the inverter overcurrent protection device is rated at 100A, and the inverter continuous output current is 72. The tap conductor that is to be installed will be 17 ft. long. It will be located in a raceway and will supply a subpanel with a 50A main breaker.
What is the MINIMUM required ampacity of the tap conductor?

A) 400A
B) 72
C) 163
D) 50A

2. A rooftop PV system is proposed for a commercial building with a membrane roof. The structural engineer specifies a maximum allowable dead load of 5 psf. The PV modules weigh 3 psf, and the racking adds 1.5 psf.
What additional load can be added without exceeding the limit?

A) 0 psf
B) 0.5 psf
C) 1.5 psf
D) 1.0 psf

3. A rooftop PV system is being installed on a residential building with a 30-degree tilt angle. The modules are oriented directly south in a location where the solar noon altitude on December 21st is 30 degrees. What is the minimum distance required between two rows of modules to avoid shading between 9 AM and 3 PM solar time, assuming the module height is 3 feet?

A) 3 feet
B) 6 feet
C) 9 feet
D) 12 feet

4. Inspection of a new PV installation shows that the dwelling uses a galvanized water pipe for its grounding electrode and that the PV system now shares the connection. Which of the following is an acceptable supplemental electrode method to ensure the integrity of having a grounding electrode?

A) Connecting the water pipe to a gas pipe that is known to be solidly grounded
B) Connection the service panel to a copper-clad steel ground rod near the panel
C) Connecting the water pipe to the service entrance panel metal structure
D) Connecting the service panel to an auxiliary ground used by a lightning protection system

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

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