PVIP Dumps 2022 - New NABCEP PVIP Exam Questions
Free PVIP Braindumps Download Updated on Feb 18, 2022 with 72 Questions
NEW QUESTION 28
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. On or within 3 ft. of the ac disconnect
- B. On or within 3 ft. of the ac disconnect
- C. On or within 3 ft. of the ac disconnect
- D. On or within 3 ft. of the ac disconnect
Answer: A
NEW QUESTION 29
An 8 AWG bare copper equipment ground conductor (EGC) is wire tied to the module mounting structure of a commercial rooftop solararray. After a few years of operation, some spots on the EGC begin to turn a green color and appear to be corroding more significantly that other places. What would the MOST likely cause of the problem?
- A. Nyton wire ties in contact with the copper wire
- B. A break in the EGC, leaving the array ungrounded
- C. Bypass dlode failures inducing current on the EGC
- D. Array racking touching the EGC at multiple points
Answer: D
NEW QUESTION 30
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?
- A. Soling of modules has reduced the efficiency of the system.
- B. Wiring insulation has degraded and is resulting in leakage.
- C. Typical module degradation has lowered the output of the system's strings.
- D. The conductor insulation is functioning as intended.
Answer: D
NEW QUESTION 31
Which electrical connection requires the use of a torque device to complete the connection per NEC requirements?
- A. Underground direct-burial twist-on wire connector
- B. Crimp-on log to the battery cable
- C. Soldered splices in a conduit body
- D. Screw terminals on an ac receptacle outlet
Answer: B
NEW QUESTION 32
Which of the following MUST be referenced for determining a site's design wind speed?
- A. The jurisdiction's local building code in effect
- B. The ASHRAE Handbook_fundamentals in effect
- C. The NEC version in effect
- D. The module manufacture's design wind speed
Answer: B
NEW QUESTION 33
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. 18.25 in.
- C. 12.73 in.
- D. 24.24 in.
Answer: C
NEW QUESTION 34
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. Battery state of charge in a multimode system
- C. Intensity of solar insolation to determine power output
- D. Loose PV input circuit terminations in a combiner box
Answer: A
NEW QUESTION 35
According to the NEC, where on a residential PV system MUST the labeling describing the type of rapid shutdown be located?
- A. A close as practicable to the PV array requiring rapid shutdown
- B. On the rapid shutdown initiation device.
- C. At point on the residence designated by the AKJ and fire marshal
- D. On or no more than 1 m (3. 3 ft) from the service disconnecting meant
Answer: B
NEW QUESTION 36
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 protected loads must have automatic restart function.
- B. All protected loads are connected in multiwire branch circuits.
- C. The stand-alone system configuration can adequately supply current to all protected load branch circuit.
- D. The peak current from the sealed lead- acid batteries must not exceed peak demand currents.
Answer: B
NEW QUESTION 37
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. Concrete-encased 4 AWG copper conductor at least 20 ft, in length
- 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. Metal frame of a building or structure in direct with the earth for 10 ft. or more.
Answer: B
NEW QUESTION 38
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 interconnectchangeable with receptacles in other electrical systems.
- B. The grounding member shall be last to make and first to break contact with the mating connector
- C. The connector shall have a non-polarized configuration.
- D. The connector shall be installed so as to guard against inadvertent with live parts by persons.
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. 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.
- 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: A
NEW QUESTION 40
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. More than 10ft, from the PV array or more than 5 ft. in length inside the building
- B. More than 1 ft, from the VP array and more than 5 ft. In length the building.
- C. Within the array boundary and more than 3.ft from the point of entry of the building.
- D. More than 1 ft, from the PV array or more than 3 ft, from the point of entry of the building.
Answer: D
NEW QUESTION 41
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. 24 in.
- B. 18 in.
- C. 36 in.
- D. 12 in.
Answer: A
NEW QUESTION 42
An installer was asked to provide a means to measure the voltage of each battery in a system. The bank is located 50 ft.
From the data logger. The installer will be using shielded. Twisted pairs of instrumentation wiring, all run in the bundle a conduct.
The signals are connected to isolated and ungrounded inputs at a data logger. Which safely precaution is MOST needed to protect the instrumentation wiring?
- A. Each set of twisted pairs must be provided with properly rated fuses that are physically located at the battery.
- B. An appropriately rated and sized of resistive elements for each twisted pair be located at, or very near to, the data logger terminals
- C. The instrument wiring must be large (larger than # 18 AWG) to handle current from each battery and must be a double- insulated type.
- D. Individual nonfused disconnects are required for each set of wiringbecause all of the signals must be isolated from each other.
Answer: A
NEW QUESTION 43
What is an arc-flash boundary?
- A. The distance within which qualified personnel can safely perform bare-handed work on exposed energized electrical equipment operating at 50 volts or more.
- B. The approach limit distance within which inadvertent movement exposes personnel to increase ris due to electrical arc-over potential.
- C. The approach limit distance from energized electrical equipment within which a person is considered to be exposed to full circuit voltage.
- D. The approach limit distance within which a person could receive a second-degree burn in the event that an electrical arc flash were to occur
Answer: B
NEW QUESTION 44
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. Tested and approval by the distributor of the equipment
- C. Approval by the local AHJ for meeting safely regulations
- D. Certified in writing by the manufacturer or an NRTL
Answer: C
NEW QUESTION 45
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. High voltage
- C. Loose module connections
- D. Intermittent ground connections
Answer: A
NEW QUESTION 46
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. Test for voltage on the positive out
- B. Open all fuse holders in the combiner box.
- C. Test for current on each source circuit coming into the combiner box.
- D. Remove any surge suppression devices from the circuits.
Answer: B
NEW QUESTION 47
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. #10 copper
- B. #8 copper
- C. #12 aluminum
- D. #6 aluminum
Answer: A
NEW QUESTION 48
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. 35 modules in landscape
- B. 40 modules in landscape
- C. 28 modules in portrait
- D. 30 modules in portrait
Answer: A
NEW QUESTION 49
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 ft. when insulted conducted conductors are used between terminals.
- B. 6 ft.When the floor is insulated and no dehumidifier is installed.
- C. 4 ftWhether or not the building is equipped with a dehumidifier or the batteries are insulting surfaces
- D. 3-1/2If the building is equipped with a dehumidifier and the batteries are on insulting surfaces
Answer: A
NEW QUESTION 50
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 the service entrance panel metal structure
- B. Connecting the service panel to an auxiliary ground used by a lightning protection system
- C. Connecting the water pipe to a gas pipe that is known to be solidly grounded
- D. Connection the service panel to a copper-clad steel ground rod near the panel
Answer: A
NEW QUESTION 51
Which circuits are on the utility side of a service point?
- A. Service entrance conductors
- B. Feeders
- C. Service lateral
- D. Service conductors
Answer: D
NEW QUESTION 52
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 toad exceeds the capacity of the interconnection breaker.
- B. The total load exceeds the system's energy storage capacity of 14kWh.
- C. The main service panel is no longer compliant with NCC 705.12.
- D. The load the protected loads subpanel exceeds the PV system ac rating by 25%.
Answer: A
NEW QUESTION 53
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