Nov-2025 NABCEP PVIP Actual Questions and 100% Cover Real Exam Questions
PVIP Free Exam Questions and Answers PDF Updated on Nov-2025
NABCEP PVIP (PV Installation Professional) Board Certification Exam is an essential credential for individuals looking to specialize in the safe and effective installation of photovoltaic systems. Obtaining this certification is an investment in one's career and provides a significant competitive advantage in the industry. The skills and knowledge gained through the certification program ensure that certified individuals are always up to date with the latest trends and advancing their skills through ongoing education.
NEW QUESTION # 15
The point-of-utility connection of a residential utility-interactive PV system is in the main distribution panel. If the busbars of the main distribution panel are rated at 200A, and if the distribution panel has a 200A main breaker, the rated output current of the inverter cannot exceed.
- A. 40A
- B. 24A
- C. 32A
- D. 200A
Answer: C
NEW QUESTION # 16
A PV system has a 1000V DC array feeding a transformerless inverter. What is the minimum insulation rating for the DC conductors per NEC 690.35?
- A. 2000V
- B. 1000V
- C. 1500V
- D. 600V
Answer: C
NEW QUESTION # 17
A PV array with 58 in. X 38 in modules in portrait orientation is to be mounted at a 35 tiit angle on a shingle roof that has a 5:12 pitch. Assuming the support leg is attached to the top of the modules and is perpendicular to its face, what is the length of the support leg for the modules?
- A. 40.50 in.
- B. 24.24 in.
- C. 18.25 in.
- D. 12.73 in.
Answer: D
NEW QUESTION # 18
During commissioning, a PV system's measured Voc is 10% lower than expected. What is the most likely cause?
- A. Shading on one module
- B. Open circuit in a string
- C. High ambient temperature
- D. Inverter malfunction
Answer: B
NEW QUESTION # 19
An installer has decided to use 31 in. long. 3.1/2 in diameter conical ground screws as the footings for a 3.840 W solar electric system. Access to he is too difficult to pour concrete footings. The soll is classified as sandy loam. The design wind speed is 90 mph with an uplift force of 32 ibs/ft2. What is the MINIMUM number of screw required to resist uplift loads?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 20
A PV system's annual energy production is 15,000 kWh. After maintenance, production increases by 5%.
What is the new annual output?
- A. 16,250 kWh
- B. 15,750 kWh
- C. 16,000 kWh
- D. 15,500 kWh
Answer: B
NEW QUESTION # 21
An installer is working on a 1000V DC PV array. What is the minimum PPE required per NFPA 70E for arc flash protection?
- A. Category 2 PPE
- B. Category 4 PPE
- C. Category 3 PPE
- D. Category 1 PPE
Answer: A
NEW QUESTION # 22
A PV system interconnects at a 480V three-phase service. The inverter output current is 20A per phase. What is the minimum size of the equipment grounding conductor (EGC) per NEC 250.122 if the OCPD is 30A?
- A. 12 AWG
- B. 10 AWG
- C. 8 AWG
- D. 14 AWG
Answer: B
NEW QUESTION # 23
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. Mount inverters on nonconductive supports and temporarily ground one dc circuit conductor.
- D. Apply lockout/tagout devices and install a listed isolation transformer.
Answer: B
NEW QUESTION # 24
When installing a ground-mounted PV array, which of the following grounding methods complies with NEC Article 690 requirements for equipment grounding?
- A. Installing a ground-fault circuit interrupter (GFCI) on the DC side of the system
- B. Connecting the module frames to the racking with bare copper wire only
- C. Bonding all metal parts to the equipment grounding conductor tied to the main service ground
- D. Using a grounding electrode conductor connected to a separate ground rod for each array
Answer: C
NEW QUESTION # 25
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 modulesare more shade-tolerance than eitheramorphous or monocrystalline modules and allow a larger array to be installed, including in area where shading could be seasonally problematic.
Answer: B
NEW QUESTION # 26
A module's Isc is 9A at STC. At 600 W/m² irradiance, what is the expected Isc?
- A. 5.4A
- B. 6.3A
- C. 6.0A
- D. 7.2A
Answer: A
NEW QUESTION # 27
Which of the following is the required MINIMUM width of the working space In front of ac disconnect equipment?
- A. 30 in. or the width of the ac disconnect, whichever is greater
- B. 30 in. from all exposed live parts and terminals
- C. 36 in. from the top of the ungrounded inverter terminals
- D. 36 in. from the right and left edges of the inverter
Answer: A
NEW QUESTION # 28
Which electrical connection requires the use of a torque device to complete the connection per NEC requirements?
- A. Crimp-on log to the battery cable
- B. Screw terminals on an ac receptacle outlet
- C. Underground direct-burial twist-on wire connector
- D. Soldered splices in a conduit body
Answer: A
NEW QUESTION # 29
An installer has decided to use 31 in. long. 3.1/2 in diameter conical ground screws as the footings for a
3.840W solar electric system. Access to he is too difficult to pour concrete footings. The soll is classified as sandy loam. The design wind speed is 90 mph with an uplift force of 32 ibs/ft2. What is the MINIMUM number of screw required to resist uplift loads?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 30
An installer is terminating PV conductors in a combiner box. What is the minimum torque specification for a
10 AWG connection if not specified by the manufacturer?
- A. 10 in-lb
- B. 20 in-lb
- C. 40 in-lb
- D. 30 in-lb
Answer: B
NEW QUESTION # 31
A PV system installation utilizes micro inverters connected to each module of the array. Each micro inverter has a nominal rated output of 250WV. Single phase. The microinverters are listed so that multiple inverters may be connected in parallel to a single feeder circuit, and each inverter has ancable and connector rated for
30A. What is the MAXIMUM number of inverters that may be wired together on a single 30A feeder circuit?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 32
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.
- A. 3-1/2If the building is equipped with a dehumidifier and the batteries are on insulting surfaces
- B. 4 ftWhether or not the building is equipped with a dehumidifier or the batteries are insulting surfaces
- C. 3 ft. when insulted conducted conductors are used between terminals.
- D. 6 ft.When the floor is insulated and no dehumidifier is installed.
Answer: C
NEW QUESTION # 33
A 1. 100 ft, 2 ranch home with cathedralcallingshas a 14 ft. x 41 ft. 8 in , south-facing , composite shingle roof. An engineer has determined that the home's 2 in, x 6 in. on-center roof rafters are strong enough to gold a solar electric system. The system will have 62.25 in. x 32.50 in. modules with a 1-in gap between modules and a standard twin-rillmounting system number of modules that can fit on the roof on under these conditions?
- A. 28 modules in portrait
- B. 30 modules in portrait
- C. 35 modules in landscape
- D. 40 modules in landscape
Answer: C
NEW QUESTION # 34
A AWG THWN-2 PV output conductors from two PV arrays are run in the same 3 in, conduit to their respective functionally grounded inverters in the building. The three PV source circuits are each protected by a 15A fuse in the combiner box at the array. The conduit, which is strapped directly to the roof, is exposed to design temperatures of 140' F (60' C) during its 30 ft.
Exposed run. What is the MAXIMUM current carrying capability value of the PV output conductors?
- A. 34A
- B. 42A
- C. 54A
- D. 61A
Answer: A
NEW QUESTION # 35
When performing a system checkout after completing the installation, what is the SAFEST sequence of tasks to detect installation errors before closing any disconnects to the inverter, charge controller, or batteries?
- A. Perform visual inspection, install source circuit fuses, and measure open-circuit voltage.
- B. Perform visual inspection, check polarity and measure open-circuit voltage.
- C. Install source circuit fuses, verify that all equipment-grounding conductors are secure, and measure ac line voltage.
- D. Perform visual inspection, install source circuit fuses, and measure open-circuit current.
Answer: B
NEW QUESTION # 36
A PV system is designed for a location with a peak sun hours (PSH) value of 4.5. The daily load is 18 kWh, and the system efficiency is 80%. What is the minimum array size required in kW?
- A. 4.0 kW
- B. 5.0 kW
- C. 7.5 kW
- D. 6.0 kW
Answer: B
NEW QUESTION # 37
A PV connection is being made at the center of a 300 ft. long 200 feeder. See the attack diagram. The feeder originates in the upper third of the 800A main service panel (800A main breaker) with a 200A breaker and terminates in a 200A main-lug-only subpanel. The rated output of the PV system inverter is 100A.
Which are the NIMUMUM actions required to achieve an NEC-compliant installation?
- A. Install a 325A breaker at the PV source connection point on the portion of the feeder toward the subpanel. Increase the capacity of the feeder from the main panel board to 325A breaker to the bottom of the main service panel, away from the 800 main breaker.
- B. Install a 200A breaker at the PV source connection point on the portion of the feeder toward the subpanel, maintain the capacity of the entire feeder, and move the 200A breaker to the bottom of the main service panel, away from the 800A main breaker.
- C. Install a 325A at the PV source connection point on the portion of the feeder toward the subpanel, increase the capacity of this portion of the feeder to 325A, add a 200A main breaker to the subpanel, and move the 200A breaker to bottom of the main service panel, away from the 800A main breaker.
- D. Install a 200A breaker at the PV source connection point on the portion on the portion of the feeder toward the subpanel and move the 200A breaker to the top of the main service panel, adjust to the 800A main breaker.
Answer: A
NEW QUESTION # 38
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NABCEP PVIP certification exam covers a wide range of topics, including system design, installation, commissioning, and maintenance, as well as safety, codes and regulations, and best practices. PVIP exam consists of both a written and a practical component, and is designed to test the knowledge and skills of applicants in real-world scenarios. To be eligible to take the exam, applicants must have a certain level of education and experience in the solar industry, as well as pass a background check.
The PVIP certification exam covers a wide range of topics related to the installation of PV solar systems, including system design, installation, commissioning, and maintenance. To be eligible to take the exam, candidates must meet certain requirements, including a certain amount of education and experience in the solar industry. Once certified, individuals who hold the PVIP certification are recognized as experts in the industry and are highly valued by employers, customers, and other professionals in the field.
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