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

1. A module's power is 340W at STC. At 700 W/m² and 40°C with a coefficient of -0.38%/°C, what is the output?

A) 260W
B) 248W
C) 236W
D) 224W

2. When installing an ungrounded PV system with an open-circuit voltage of 450Vdc and a maximum voltage of
3000Vdc which procedures should be followed to establish an electrically safe condition?

A) Verify that disconnecting device blades are closed and test conductors using an adequately rated detector.
B) Determine possible sources electrical supply an avoid exposure to energized conductors or parts.
C) Apply lockout/tagout devices and install a listed isolation transformer.
D) Mount inverters on nonconductive supports and temporarily ground one dc circuit conductor.

3. A homeowner is weighing the PV module options for a roof-mounted solar array. Which is a correct option to present to the homeowner?

A) Building-integrated PV shingles will be flush or nearly flush with other shingles, but the electrical energy produced will be less than polycrystalline or monocrystalline modules.
B) Microinverters can be installed with either polycrystalline or monocrystalline modules, negating the need for rapid shutdown compliance.
C) Rapid shutdown requirements within 1 ft of the array boundary.
D) Polycrystalline modules are more shade-tolerance than either amorphous or monocrystalline modules and allow a larger array to be installed, including in area where shading could be seasonally problematic.

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

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

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) Rail to metal seam roof, metal seam roof to top plate, top plate to wall system
D) Module to rail to metal seam roof, metal seam roof to top plate system

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