Free Sales Ending Soon - Use Real PVIP PDF Questions [Jan 09, 2022]
Updated Jan-2022 Exam PVIP Dumps - Pass Your Certification Exam
NEW QUESTION 10
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: D
NEW QUESTION 11
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. Tested and approval by the distributor of the equipment
- B. Certified via the state material handling safely statutes
- C. Approval by the local AHJ for meeting safely regulations
- D. Certified in writing by the manufacturer or an NRTL
Answer: C
NEW QUESTION 12
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 total load exceeds the system's energy storage capacity of 14kWh.
- B. The load the protected loads subpanel exceeds the PV system ac rating by 25%.
- C. The toad exceeds the capacity of the interconnection breaker.
- D. The main service panel is no longer compliant with NCC 705.12.
Answer: C
NEW QUESTION 13
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, check polarity and measure open-circuit voltage.
- B. Perform visual inspection, install source circuit fuses, and measure open-circuit voltage.
- C. Perform visual inspection, install source circuit fuses, and measure open-circuit current.
- D. Install source circuit fuses, verify that all equipment-grounding conductors are secure, and measure ac line voltage.
Answer: A
NEW QUESTION 14
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. There is lower module mismatch in string #3 than in string #1 and #2.
- B. String #3 has an open connection and is not contributing any voltage.
- C. A ground fault is causing the current from strings #1 and #2 to flow into string #3.
- D. Positive and negative output conductors of string #3 are faulted together.
Answer: D
NEW QUESTION 15
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. 40A
- B. 32A
- C. 42A
- D. 30A
Answer: A
NEW QUESTION 16
According to the NEC, if the PV system disconnect and the building service disconnect are at different locations, there MUST be a/an:
- A. Means of locking out both disconnects when the PV system inverter is being serviced.
- B. Permanent plaque or directory that indicates the location of thePV utility connection.
- C. Permanent plaque or directory that indicates the locations of both disconnects.
- D. Interface that shuts down the PV system if the utility connection is lost.
Answer: C
NEW QUESTION 17
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. 153 ft.
- B. 167 ft.
- C. 201 ft.
- D. 98 ft.
Answer: C
NEW QUESTION 18
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 monitored dc-to-dc converters located at each module
- B. Multiple-string inverter system with data acquisition system located at each inverter.
- C. Multiple-string inverter system with data acquisition system located at each dc combiner
- D. Central inverter with data acquisition system located at the inverter.
Answer: C
NEW QUESTION 19
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. #6 aluminum
- B. #8 copper
- C. #10 copper
- D. #12 aluminum
Answer: C
NEW QUESTION 20
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. The conductor insulation is functioning as intended.
- B. Wiring insulation has degraded and is resulting in leakage.
- C. Soling of modules has reduced the efficiency of the system.
- D. Typical module degradation has lowered the output of the system's strings.
Answer: A
NEW QUESTION 21
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. Intensity of solar insolation to determine power output
- C. Blind spot fault in a source circuit
- D. Loose PV input circuit terminations in a combiner box
Answer: C
NEW QUESTION 22
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. Ground the PV module frames, but not the mounting racks, to local grounding electrodes.
- B. Install a physical barrier on the back of the PV modules that prevent that prevents the conductors from being touched.
- C. Install PV modules with plastic, insulating the frames, and connect to a grounding electrode at the array.
- D. Mount the PV modules on a one-axis (north-south) tracker, with supporting structures listed to UL 2703.
Answer: B
NEW QUESTION 23
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. Array racking touching the EGC at multiple points
- B. A break in the EGC, leaving the array ungrounded
- C. Bypass dlode failures inducing current on the EGC
- D. Nyton wire ties in contact with the copper wire
Answer: A
NEW QUESTION 24
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. There is an intermittent inverter failure that is causing production to be lower than expected and the inverter should be repaired.
- C. A combination of normal module degradation combined with cloudy weather has caused lower output in the past few years.
- D. The system has experienced above-average degradation and a module warranty claim should be explored.
Answer: C
NEW QUESTION 25
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: D
NEW QUESTION 26
What is an arc-flash boundary?
- A. The approach limit distance within which inadvertent movement exposes personnel to increase ris due to electrical arc-over potential.
- B. The distance within which qualified personnel can safely perform bare-handed work on exposed energized electrical equipment operating at 50 volts or more.
- 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: A
NEW QUESTION 27
Which insulation color is allowed for a current-carrying roottop dc conductor on a functionally grounded 6kw PV system?
- A. Red
- B. White
- C. Green/yellow
- D. Green
Answer: A
NEW QUESTION 28
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. Missing ground in the transformer
- B. Phase-to-phase power imbalances
- C. Supply-side ground fault
- D. High-leg transformer configuration
Answer: D
NEW QUESTION 29
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. 12 in.
- B. 18 in.
- C. 24 in.
- D. 36 in.
Answer: C
NEW QUESTION 30
Which circuits are on the utility side of a service point?
- A. Feeders
- B. Service conductors
- C. Service lateral
- D. Service entrance conductors
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. Intermittent ground connections
- D. High voltage
Answer: A
NEW QUESTION 32
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. 32A
- B. 40A
- C. 24A
- D. 200A
Answer: A
NEW QUESTION 33
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. Aluminum structural member in direct contact with the earth for 10ft, or more
- B. Metal underground water pipe in direct contact with the earth for 10 ft. or more.
- C. Metal frame of a building or structure in direct with the earth for 10 ft. or more.
- D. Concrete-encased 4 AWG copper conductor at least 20 ft, in length
Answer: A
NEW QUESTION 34
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: B
NEW QUESTION 35
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