[May 01, 2022] Valid PVIP Test Answers & NABCEP PVIP Exam PDF
Realistic PVIP Exam Dumps with Accurate & Updated Questions
NEW QUESTION 26
With all other environmental parameters being the same, which would be the expected reduction in KM performance of a PV system after an irradiance drop from 810w/m2 to 740w/m2?
- A. 9.5%
- B. 8.6%
- C. 7.4%
- D. 10.2%
Answer: B
NEW QUESTION 27
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. Install PV modules with plastic, insulating the frames, and connect to a grounding electrode at the array.
- B. Ground the PV module frames, but not the mounting racks, to local grounding electrodes.
- C. Mount the PV modules on a one-axis (north-south) tracker, with supporting structures listed to UL 2703.
- D. Install a physical barrier on the back of the PV modules that prevent that prevents the conductors from being touched.
Answer: D
NEW QUESTION 28
Which temperature coefficient is used in the calculation to verify energy production of a PV system?
A)
B)
C)
D)
- A. Option
- B. Option
- C. Option
- D. Option
Answer: A
NEW QUESTION 29
Which of the following is the required MINIMUM width of the working space In front of ac disconnect equipment?
- A. 36 in. from the right and left edges of the inverter
- B. 36 in. from the top of the ungrounded inverter terminals
- C. 30 in. from all exposed live parts and terminals
- D. 30 in. or the width of the ac disconnect, whichever is greater
Answer: D
NEW QUESTION 30
Most electric service providers require interactive PV equipment to comply with which for interconnection to their distribution grid?
- A. UL 60947-1
- B. UL 16998
- C. UL 2703
- D. UL 1741
Answer: A
NEW QUESTION 31
The AHJ for enforcement of the NEC has which responsibility?
- A. Inspecting factory-installed wire and equipment construction methods
- B. Approval equipment installation methods for efficiency, convenience, and adequacy for good service
- C. Making interpretations of the rules and deciding on approval of equipment and material
- D. Inspecting installations under the exclusive control of the electric utility
Answer: C
NEW QUESTION 32
Which of the following MUST be referenced for determining a site's design wind speed?
- A. The module manufacture's design wind speed
- B. The NEC version in effect
- C. The jurisdiction's local building code in effect
- D. The ASHRAE Handbook_fundamentals in effect
Answer: D
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. 40 modules in landscape
- B. 30 modules in portrait
- C. 35 modules in landscape
- D. 28 modules in portrait
Answer: C
NEW QUESTION 34
A PV system is located at 41 N latitude. The sun angle is 23 on December 21 at solar noon. Assuming that the
65 ft tree is directly south of the PV array and will grow 20 ft. over the life of the PV system, what is the MNIMUM distance the tree to the button of the prevent shading?
- A. 98 ft.
- B. 153 ft.
- C. 201 ft.
- D. 167 ft.
Answer: C
NEW QUESTION 35
An installer is hired to troubleshoot a 10-year-old roottop system with open-circuitvoltage of 300V. The ground-fault detection (GFD) device has tripped. The insulation on the exposed source circuit cables has deterlorated with multiple cracks and has no flexibility. Which concern is the MOST likely safely issue when servicing this array?
- A. Short-circuit current is present at the PV source-circuit terminals of the disconnect device because of electrical leakage.
- B. Ungrounded conductors are conducing current event the ground-fault device has activated.
- C. Cracked insulation has allowed water intrusion that resulted in oxidation of the copper conductors.
- D. Insulation has become an electrical conductor since it has changed its composition.
Answer: D
NEW QUESTION 36
A PV technician is installing a 6.5KWac inverter using a 40A backfed breaker. The single line shows a 200A panelboard with a 200A breaker, but the installer finds that the panelbord actually has a 150A main breaker.
Which of the following is the CORRECT installation option?
- A. Install a 30A backfed circuit breaker.
- B. Replace the 200A panel with a 150A panel.
- C. Change the main circuit breaker to a 200A unit.
- D. Complete the installation as noted above.
Answer: D
NEW QUESTION 37
Which is a requirement for designated battery rooms?
- A. Battery cabinets, racks, or trays must have a minimum clearance of 12 in. from any wall.
- B. illumination shall be provided by lightingoutlets controlled by automated means only.
- C. must be equipped withpanic hardware and open m the directionof egress.
- D. Gas pipe equipment must be constructed and installed for a Hazardous Class I location.
Answer: C
NEW QUESTION 38
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: D
NEW QUESTION 39
Thermal imaging infrared cameras can be used to help find which of the following system operational issues?
- A. Blind spot fault in a source circuit
- B. Loose PV input circuit terminations in a combiner box
- C. Battery state of charge in a multimode system
- D. Intensity of solar insolation to determine power output
Answer: A
NEW QUESTION 40
Which of the following requires a UL listing or its equivalent?
- A. Grounding electrode clamp
- B. Lag screws
- C. System labels and markings
- D. System manuals
Answer: A
NEW QUESTION 41
A grid-interactive PV system with battery backup is being installed with a ground-mounted PV array located
200 ft, from the inverter and batteries. The dc PV output circuit has overcuit has overcurrent protection rated from 30A. To reduce voltage drop between the array and batteries, the output circuit wire size was determined to be 6 AWG. The fused dc disconnect between the inverted and batteries is rated for 300A. What is the required size of the equipment grounding conductor between the metal battery case and the inverter?
- A. 8 AWG
- B. 4 AWG
- C. 6 AWG
- D. 10 AWG
Answer: B
NEW QUESTION 42
Which insulation color is allowed for a current-carrying roottop dc conductor on a functionally grounded 6kw PV system?
- A. White
- B. Red
- C. Green
- D. Green/yellow
Answer: B
NEW QUESTION 43
An installer troubleshooting a ground-mounted array finds It to be performing as expected most of the time, but a ground-fault error is indicated on hot days. The inverter is in a shaded location. Which of the following should theinstaller check for FIRST when troubleshooting this array?
- A. Loose module connections
- B. Pinched module wiring
- C. Intermittent ground connections
- D. High voltage
Answer: B
NEW QUESTION 44
A7KW/ 14 KWh multimode systemhas been installed at a residence, ac-couple with the customer's existing
6.7kwh ac PV system. The system providers uninterrupted power to a protect loads subpanel, which is connected to a refrigerator, Microwave, 1.0 ton are conditioner, three lightning circuit, and the 6.7kwac PV system. One month later, the homeowner moves additional circuits to the protected loads subpanel, substantially increasing the loads. Why would this cause, the backfed interconnection breaker in the main service panel to trip?
- A. The main service panel is no longer compliant with NCC 705.12.
- B. The toad exceeds the capacity of the interconnection breaker.
- C. The total load exceeds the system's energy storage capacity of 14kWh.
- D. The load the protected loads subpanel exceeds the PV system ac rating by 25%.
Answer: B
NEW QUESTION 45
While surveying a potential three-phase project, an installer measures the voltage at the point of utility interconnection. The results are as follows:
* Phase to phase: 240V
* Phase A neutral: 120V
* Phase B neutral: 208V
* Phase C neutral: 120V
Which is a likely cause of these reading?
- A. Supply-side ground fault
- B. Phase-to-phase power imbalances
- C. Missing ground in the transformer
- D. High-leg transformer configuration
Answer: D
NEW QUESTION 46
Which of the following is an NEC-indicate means to identify PV source and output circuits at accessible points of termination connection, and splices?
- A. Insulation type
- B. Conduct stickers
- C. Placards
- D. Tagging
Answer: D
NEW QUESTION 47
A grounding electrode is required at the location of all ground-mounted and pole-mounted PV arrays. Which typeof grounding electrode is NOT permitted for arrays. Which type of the grounding electrode is NOT permitted for array grounding?
- A. Metal frame of a building or structure in direct with the earth for 10 ft. or more.
- B. Aluminum structural member in direct contact with the earth for 10ft, or more
- C. Metal underground water pipe in direct contact with the earth for 10 ft. or more.
- D. Concrete-encased 4 AWG copper conductor at least 20 ft, in length
Answer: B
NEW QUESTION 48
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. 30A
- B. 40A
- C. 32A
- D. 42A
Answer: B
NEW QUESTION 49
How should stratification be eliminated in a set of large, stationary, stationary flooded lead-acid batteries?
- A. Enable equalization.
- B. Discharge to 80 depth of discharge.
- C. Add 50% diluted sulfuric acid.
- D. Rotate the battery positions
Answer: A
NEW QUESTION 50
An installer is using 1/2 in lag boits to secure roof-monitoring hardware to rafters through a roof deck. Which of the following should the installer predrill?
- A. A 5/16 in pilot hole through the roof into the rafter
- B. A pilot hole one-fourth the length of the bolt
- C. A 1/8 in, pilot hole through the roof into the rafter
- D. A pilot hole one-half the length of the bolt
Answer: A
NEW QUESTION 51
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