[Dec 31, 2025] Get New PVIP Practice Test Questions Answers
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The North American Board of Certified Energy Practitioners (NABCEP) PV Installation Professional (PVIP) Board Certification Exam is a rigorous certification exam for professionals in the solar energy industry. PV Installation Professional (PVIP) Board Certification certification is designed to demonstrate a high level of competency in the design, installation, and maintenance of photovoltaic (PV) solar energy systems. The PVIP certification is recognized as the industry standard for solar professionals, and is a requirement for many job positions in the solar energy industry.
NEW QUESTION # 84
How should stratification be eliminated in a set of large, stationary, stationary flooded lead-acid batteries?
- A. Rotate the battery positions
- B. Discharge to 80 depth of discharge.
- C. Add 50% diluted sulfuric acid.
- D. Enable equalization.
Answer: D
NEW QUESTION # 85
A grid-connected PV system on a dwelling is producing 30% less power than expected. The conductors from threes strings of modules enter into a 3-pole fused dc disconnect, and each ungrounded conductor is connected to a separate pole. On the inverter side of the switch terminals, the three strings are combined. The dc disconnect switch is opened. The voltages on the array side of theswitchare 440 on string #1, 444V on string
#2, and 0V on string #3. The dc disconnect is then closed and the inverter resumes operating, still producing about 30% less power than expected. A clamp-on ammeter is used to measure the dc current of each string of each string of modules where they enter the rooftop junction box. The operating currents of each string are
3.9A for string #1, 3 85A for string #2, and 4.3 A for string #3. What is the MOST likely with the system?
- A. String #3 has an open connection and is not contributing any voltage.
- B. There is lower module mismatch in string #3 than in string #1 and #2.
- C. Positive and negative output conductors of string #3 are faulted together.
- D. A ground fault is causing the current from strings #1 and #2 to flow into string #3.
Answer: C
NEW QUESTION # 86
A 10 kW array produces 14,000 kWh annually. What is the specific yield in kWh/kW?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 87
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?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 88
A homeowner is concerned that a 6kWdc PV system might be experiencing a performance issue. The homeowner has noticed what appears to be declining production. The installer analyzes the following data acquisition system (DAS) results for each year since the installation:
Given the data, which is the MOST likely conclusion to draw?
- A. There is a problem with the DAS because the peak sun hours do not correlate with production values and the das should be repaired.
- B. A combination of normal module degradation combined with cloudy weather has caused lower output in the past few years.
- C. There is an intermittent inverter failure that is causing production to be lower than expected and the inverter should be repaired.
- D. The system has experienced above-average degradation and a module warranty claim should be explored.
Answer: B
NEW QUESTION # 89
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. 175A
- B. 162.5A
- C. 150A
- D. 130A
Answer: B
NEW QUESTION # 90
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 # 91
On a PV system larger than 100kw, which PV array design will provide the HIGHEST degree of performance monitoring.
Granularity, and ease of troubleshooting performance issues?
- A. Multiple-string inverter system with data acquisition system located at each dc combiner
- B. Multiple-string inverter system with monitored dc-to-dc converters located at each module
- C. Central inverter with data acquisition system located at the inverter.
- D. Multiple-string inverter system with data acquisition system located at each inverter.
Answer: A
NEW QUESTION # 92
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. Connecting the water pipe to a gas pipe that is known to be solidly grounded
- B. Connection the service panel to a copper-clad steel ground rod near the panel
- C. Connecting the service panel to an auxiliary ground used by a lightning protection system
- D. Connecting the water pipe to the service entrance panel metal structure
Answer: D
NEW QUESTION # 93
A PV system operates at 800V DC. What is the minimum distance for unqualified personnel per NFPA 70E restricted approach boundary?
- A. 3 feet
- B. 7 feet
- C. 10 feet
- D. 1 foot
Answer: B
NEW QUESTION # 94
A site survey indicates a residential roof with a 4:12 pitch facing 20° east of south. The local latitude is 35°N, and the optimal tilt for maximum annual production is equal to latitude. What adjustment should be made to compensate for the roof's orientation and tilt to achieve near-optimal output?
- A. No adjustment needed; output loss is negligible
- B. Install adjustable racking to match 35° tilt
- C. Rotate modules 20° west to face true south
- D. Increase array capacity by 5%
Answer: B
NEW QUESTION # 95
The NEC requires that PV systems installed on dwellings incorporate which of the following components?
- A. Blocking diodes across each module
- B. A dc ground-fault protect device
- C. A lockable utility disconnect at the point-of-utility interconnection
- D. Dc lightning surge arrestors
Answer: C
NEW QUESTION # 96
A ground resistance measurement on a newly installed grounding electrode indicates a resistance of 130#. The earth connection may be improved by connecting the existing electrode to a:
- A. Supplemental grounding electrode located 5 ft, away.
- B. Buried water piping system using 40 ft. of 2 in. PVC piping located 10 ft awat.
- C. Supplemental copper plated steel grounding electrode located 8 ft, away.
- D. Supplement ¼ in, in thick aluminum plate electrode buried 30 in. down and located 7 ft, away.
Answer: C
NEW QUESTION # 97
The following dc portion of a PV schematic (functionally grounded conductor not shown) is submitted to the building official for permit approval. The building official, who also is he AHJ, allow the system to be installed by requiring what NEC-required MINIMUM size equipment grounding conductor at Location A?
- A. #8 copper
- B. #12 aluminum
- C. #6 aluminum
- D. #10 copper
Answer: D
NEW QUESTION # 98
A customer has a 200A service with a 200A rated panel and 200A main breaker located on the street side of the house. There is a 100A breaker located at the opposite end of busbar feeding a 125A subpanel in the backyard. The customer would like to place the inverter the backyard and use the 125 subpanel. Which MAXIMUM inverter(s) output circuit current could be installed?
- A. 42A
- B. 40A
- C. 30A
- D. 32A
Answer: B
NEW QUESTION # 99
A PV system has a nameplate capacity of 10 kW DC and operates with a total system derate factor of 0.85.
What is the expected AC output power under standard test conditions (STC)?
- A. 9.0 kW
- B. 10.0 kW
- C. 8.5 kW
- D. 7.5 kW
Answer: C
NEW QUESTION # 100
A site has a known magnetic declination of 14 west. What should the corrected azimuth reading of the array be in order to be facing true south?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 101
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. 1 inch
- B. 3 inches
- C. 6 inches
- D. 9 inches
Answer: B
NEW QUESTION # 102
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. 1000V
- B. 600V
- C. 1500V
- D. 2000V
Answer: C
NEW QUESTION # 103
A ground-fault protection device (GFPD) trips during commissioning. What is the most likely cause per NEC 690.5?
- A. Reverse polarity in a source circuit
- B. Overcurrent in the inverter output
- C. Open circuit in the array
- D. Insulation failure between a conductor and ground
Answer: D
NEW QUESTION # 104
A maintenance inspection reveals cracked module glass. What is the immediate action?
- A. Disconnect the string
- B. Replace the module
- C. Monitor performance
- D. Apply sealant to cracks
Answer: B
NEW QUESTION # 105
A homeowner is concerned that a 6kWdc PV system might be experiencing a performance issue. The homeowner has noticed what appears to be declining production. The installer analyzes the following data acquisition system (DAS) results for each year since the installation:
Given the data, which is the MOST likely conclusion to draw?
- A. There is a problem with the DAS because the peak sun hours do not correlate with production values and the das should be repaired.
- B. A combination of normal module degradation combined with cloudy weather has caused lower output in the past few years.
- C. There is an intermittent inverter failure that is causing production to be lower than expected and the inverter should be repaired.
- D. The system has experienced above-average degradation and a module warranty claim should be explored.
Answer: B
NEW QUESTION # 106
Per NEC 690.11, what is the maximum allowable DC voltage for a PV system requiring arc-fault circuit protection?
- A. 600V
- B. 150V
- C. 1000V
- D. 80V
Answer: C
NEW QUESTION # 107
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NABCEP PVIP (PV Installation Professional) is a highly reputable certification for individuals who want to establish themselves as professionals in the solar photovoltaic (PV) industry. PV Installation Professional (PVIP) Board Certification certification provides recognition to those who have demonstrated their expertise in the installation of PV systems. PV Installation Professional (PVIP) Board Certification certification is awarded by the North American Board of Certified Energy Practitioners (NABCEP), which is the most respected organization in the industry.
NABCEP PVIP Board Certification Exam is designed to test the knowledge and skills of professionals who work in the solar energy field. PVIP exam covers a wide range of topics related to photovoltaic (PV) systems, including system design, installation, maintenance, and troubleshooting. Candidates who pass the exam demonstrate a high level of proficiency in all aspects of PV system installation and are considered to be among the best in the industry. PV Installation Professional (PVIP) Board Certification certification is valid for three years and must be renewed through continuing education and work experience. Overall, the NABCEP PVIP Board Certification Exam is a rigorous and comprehensive assessment of a solar energy professional's knowledge and skills and is highly respected in the industry.
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