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

1. A worker is installing modules on a roof 20 feet above grade. What OSHA fall protection is required?

A) Personal fall arrest system
B) Any of the above
C) Safety net system
D) Guardrails only

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

3. 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) 200 lbs
C) 300 lbs
D) 600 lbs

4. A ground-mount PV system is planned for a site with a soil bearing capacity of 2000 psf. The array footing design requires a minimum bearing pressure of 1500 psf. What is the safety factor for this installation?

A) 0.75
B) 1.5
C) 1.33
D) 2.0

5. Which of the following requires a UL listing or its equivalent?

A) Grounding electrode clamp
B) System labels and markings
C) System manuals
D) Lag screws

Solutions: