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NABCEP PVIP Exam Syllabus Topics:

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

1. Which of the following tests measures axial uplift when performing load testing of driven-pile foundation members

A) Resistance to horizontal movement
B) Resistance to downward (Sinking force
C) Resistance to withdraw (pull-out) force
D) Resistance to twisting

2. 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) 163
B) 50A
C) 72
D) 400A

3. A racking system is designed for a wind speed of 120 mph. The site's design wind speed increases to 130 mph. What is the percentage increase in wind pressure?

A) 25%
B) 10%
C) 33%
D) 17%

4. 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) 6 inches
B) 3 inches
C) 9 inches
D) 1 inch

5. An installer was asked to provide a means to measure the voltage of each battery in a system. The bank is located 50 ft.
From the data logger. The installer will be using shielded. Twisted pairs of instrumentation wiring, all run in the bundle a conduct.
The signals are connected to isolated and ungrounded inputs at a data logger. Which safely precaution is MOST needed to protect the instrumentation wiring?

A) The instrument wiring must be large (larger than # 18 AWG) to handle current from each battery and must be a double- insulated type.
B) Each set of twisted pairs must be provided with properly rated fuses that are physically located at the battery.
C) Individual nonfused disconnects are required for each set of wiring because all of the signals must be isolated from each other.
D) An appropriately rated and sized of resistive elements for each twisted pair be located at, or very near to, the data logger terminals

Solutions: