Pass NABCEP PVIP PDF Dumps | Recently Updated 72 Questions
Updated Test Engine to Practice PVIP Dumps & Practice Exam
NEW QUESTION 22
A technician has been called to a scale due to a low-performing array. The technician will perform tests in the
24-source circuit combiner box. After putting on the correct PPE and turning off and performing lock.tagout of the inverted and combiner disconnect. Which is the next step to safely begin electrical testing in the combiner box?
- A. Open all fuse holders in the combiner box.
- B. Test for current on each source circuit coming into the combiner box.
- C. Test for voltage on the positive out
- D. Remove any surge suppression devices from the circuits.
Answer: A
NEW QUESTION 23
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: B
NEW QUESTION 24
A connector not listed to be used in a concealed location and being used as a disconnect for PV equipment shall comply with which of the following?
- A. The grounding member shall be last to make and first to break contact with the mating connector
- B. The connector shall be installed so as to guard against inadvertent with live parts by persons.
- C. The connector shall have a non-polarized configuration.
- D. The grounding member shall be interconnectchangeable with receptacles in other electrical systems.
Answer: B
NEW QUESTION 25
Thermal imaging infrared cameras can be used to help find which of the following system operational issues?
- A. Battery state of charge in a multimode system
- B. Loose PV input circuit terminations in a combiner box
- C. Intensity of solar insolation to determine power output
- D. Blind spot fault in a source circuit
Answer: D
NEW QUESTION 26
Aerial lifts used to hoist equipment and PV modules to roof levels may be fieldmodifiedfor uses other than those intended by the manufacturer with which approval or certification?
- A. Certified via the state material handling safely statutes
- B. Approval by the local AHJ for meeting safely regulations
- C. Certified in writing by the manufacturer or an NRTL
- D. Tested and approval by the distributor of the equipment
Answer: B
NEW QUESTION 27
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 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.
- B. 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.
- C. 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.
- D. Install a 325A breaker at the PV source connection point on the portion of the feeder toward the subpanel. Increase thecapacityof the feeder from the main panel board to 325A breaker to the bottom of the main service panel, away from the 800 main breaker.
Answer: D
NEW QUESTION 28
A residential PV system uses two 120.240Vac utility-interactive inverters with a sealed lead-acid battery energy backup for protected loads. The MOST important protected load consideration when operating in the backup mode is that:
- A. The stand-alone system configuration can adequately supply current to all protected load branch circuit.
- B. The peak current from the sealed lead- acid batteries must not exceed peak demand currents.
- C. All protected loads are connected in multiwire branch circuits.
- D. The protected loads must have automatic restart function.
Answer: C
NEW QUESTION 29
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. 200A
- C. 32A
- D. 24A
Answer: C
NEW QUESTION 30
Which of the following is an NEC requirement regarding access for large-scale PV electric power production facilities?
- A. All fencing and associated gates must have ac and dc current and voltage exposure labvels and must be electrically isolated from the solar facility.
- B. Field-applied hazard markings must be installed, and access to the supply station is to be restricted by fencing or other adequate means.
- C. Access to remote isolating equipment for servicing is allowed for individual other than qualified persons when the equipment is enclosed within a secure structure.
- D. Arc flash warning labels must be field-applied by the installer at all access points for qualified persons and at the point of the utility interconnection directory.
Answer: B
NEW QUESTION 31
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. Pinched module wiring
- B. Loose module connections
- C. High voltage
- D. Intermittent ground connections
Answer: A
NEW QUESTION 32
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. 12.73 in.
- B. 24.24 in.
- C. 40.50 in.
- D. 18.25 in.
Answer: A
NEW QUESTION 33
A commercial 600v carport-mounted PV system is installed with rigid running under the parking lot to an inverter pad located at the edge of the parking lot. At what depth below the parkinglot base MUST condult be buried?
- A. 36 in.
- B. 18 in.
- C. 24 in.
- D. 12 in.
Answer: C
NEW QUESTION 34
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. Ungrounded conductors are conducing current event the ground-fault device has activated.
- B. Insulation has become an electrical conductor since it has changed its composition.
- C. Cracked insulation has allowed water intrusion that resulted in oxidation of the copper conductors.
- D. Short-circuit current is present at the PV source-circuit terminals of the disconnect device because of electrical leakage.
Answer: B
NEW QUESTION 35
Which circuits are on the utility side of a service point?
- A. Service lateral
- B. Feeders
- C. Service entrance conductors
- D. Service conductors
Answer: D
NEW QUESTION 36
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: B
NEW QUESTION 37
Which is a requirement for designated battery rooms?
- A. Gas pipe equipment must be constructed and installed for a Hazardous Class I location.
- B. must be equipped withpanic hardware and open m the directionof egress.
- C. illumination shall be provided by lightingoutlets controlled by automated means only.
- D. Battery cabinets, racks, or trays must have a minimum clearance of 12 in. from any wall.
Answer: B
NEW QUESTION 38
According to the NEC, if the PV system disconnect and the building service disconnect are at different locations, there MUST be a/an:
- A. Interface that shuts down the PV system if the utility connection is lost.
- B. Permanent plaque or directory that indicates the location of thePV utility connection.
- C. Means of locking out both disconnects when the PV system inverter is being serviced.
- D. Permanent plaque or directory that indicates the locations of both disconnects.
Answer: D
NEW QUESTION 39
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. Microinverters can be installed with either polycrystalline or monocrystalline modules, negating the need for rapid shutdown compliance.
- B. 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.
- C. Rapid shutdown requirements within 1 ft of the array boundary.
- D. 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.
Answer: A
NEW QUESTION 40
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