PVIP NABCEP PV Installation Professional (PVIP) Board Certification Free Practice Exam Questions (2025 Updated)
Prepare effectively for your NABCEP PVIP PV Installation Professional (PVIP) Board Certification certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.
A ground-mounted PV system operating with an open-critical voltage of 550V is in a public park. Which installation procedure will meet NEC requirements for protecting the public from potential electric shock?
A PV system includes a 15 kW array with a maximum power point voltage of 450V and current of 33.33A. The inverter efficiency is 97%, and the AC output voltage is 240V. What is the AC output current under STC?
A bank of batteries with capability of supplying 250A and a maximum voltage of 325V is housed in a concrete structure in a very humid location. There is service access alsie between rows of batteries. What is the REQUIRED safety distance between the rows of batteries.
Most electric service providers require interactive PV equipment to comply with which for interconnection to their distribution grid?
A ground resistance measurement on a newly installed grounding electrode indicates a resistance of 130Ω. The earth connection may be improved by connecting the existing electrode to a:
A designer is selecting a charge controller for an off-grid system with a 6 kW PV array and a 48V battery bank. The array Isc is 130A. What is the minimum current rating for the charge controller?
A project is using a PV module with a 25-38dc maximum power voltage range and a single input inverter with an operating windows of 250vdc-450dc. The dwelling the system is to be installed on has a 5:12 roof with a southeastem face that can accommodate 14 modules and southwestern face that can accommodate 10 modules. What is the MAXIMUM number of modules that can be installed for proper inverter maximum power point tracking?
When installing a ground-mounted PV array, which of the following grounding methods complies with NEC Article 690 requirements for equipment grounding?
A PV system equipped with rapid shutdown requires a label stating ‘’RAPID SHUTDOWN SWITCH FOR SOLAR PV SYSTEM’’.
Which is the BEST description of where this label is required?
A bifacial array gains 15% additional power from rear-side irradiance. If the front-side output is 10 kW, what is the total output?
Which is a requirement for designated battery rooms?
A PV array’s tilt is 30° at a latitude of 40°N. What is the winter energy loss compared to optimal tilt?
Insulation resistance testing is being performed on the conductors of a 3-year-old PV system. With a constant high test voltage being applied to a dc conductor, the test results in a high resistance reading. Which does this finding indicate?
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 PV system was installed in July 2017 under the 2017 NEC. The system has a string inverter located inside a garage on a wall 10 ft, from the outside wall and 1oft, from the ac load center at the point of utility connection. The PV system has a PV array on the roof. Which of the following represents the PV rapid shutdown system requirement for the controlled PV system conductors associated with this PV array?
A 15 kW array has a PR of 0.88 and 1600 kWh/m²/year insolation. What is the annual output?
Per NEC 690.4, who is qualified to install a PV system?
A PV system is installed in a location with an average annual ambient temperature of 30°C. If the module’s NOCT (Nominal Operating Cell Temperature) is 45°C, what is the expected cell temperature under standard operating conditions (800 W/m² irradiance)?
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 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)?
