[Nov-2021] Download Real NABCEP PVIP Exam Dumps Test Engine Exam Questions
New PVIP exam dumps Use Updated NABCEP Exam
NEW QUESTION 36
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. Supplemental copper plated steel grounding electrode located 8 ft, away.
- C. Buried water piping system using 40 ft. of 2 in. PVC piping located 10 ft awat.
- D. Supplement 1/4 in, in thick aluminumplate electrode buried 30 in. down and located 7 ft, away.
Answer: B
NEW QUESTION 37
Which of the following MUST be referenced for determining a site's design wind speed?
- A. The ASHRAE Handbook_fundamentals in effect
- B. The NEC version in effect
- C. The module manufacture's design wind speed
- D. The jurisdiction's local building code in effect
Answer: A
NEW QUESTION 38
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. Connection the service panel to a copper-clad steel ground rod near the panel
- 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. Connecting the water pipe to the service entrance panel metal structure
Answer: D
NEW QUESTION 39
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. Central inverter with data acquisition system located at the inverter.
- C. Multiple-string inverter system with data acquisition system located at each inverter.
- D. Multiple-string inverter system with monitored dc-to-dc converters located at each module
Answer: A
NEW QUESTION 40
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 41
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. Soldered splices in a conduit body
- C. Screw terminals on an ac receptacle outlet
- D. Crimp-on log to the battery cable
Answer: D
NEW QUESTION 42
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. Complete the installation as noted above.
- C. Replace the 200A panel with a 150A panel.
- D. Change the main circuit breaker to a 200A unit.
Answer: B
NEW QUESTION 43
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. #10 copper
- C. #12 aluminum
- D. #8 copper
Answer: B
NEW QUESTION 44
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 from energized electrical equipment within which a person is considered to be exposed to full circuit voltage.
- C. 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
- D. The approach limit distance within which inadvertent movement exposes personnel to increase ris due to electrical arc-over potential.
Answer: D
NEW QUESTION 45
Most electric service providers require interactive PV equipment to comply with which for interconnection to their distribution grid?
- A. UL 1741
- B. UL 60947-1
- C. UL 2703
- D. UL 16998
Answer: B
NEW QUESTION 46
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. Metal underground water pipe in direct contact with the earth for 10 ft. or more.
- C. Concrete-encased 4 AWG copper conductor at least 20 ft, in length
- D. Aluminum structural member in direct contact with the earth for 10ft, or more
Answer: D
NEW QUESTION 47
Which of the following tests measures axial uplift whenperforming load testing of driven-pile foundation members
- A. Resistance to twisting
- B. Resistance to horizontal movement
- C. Resistance to downward (Sinking force
- D. Resistance to withdraw (pull-out) force
Answer: D
NEW QUESTION 48
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 49
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 50
When running horizontal 1-1/4 in, electrical metallic tubing (EMT) with compression fittings, what is the MAXIMUM permissible distance between condult supports?
- A. 20 ft
- B. 10 ft
- C. 14 ft
- D. 3 ft
Answer: B
NEW QUESTION 51
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. 30 modules in portrait
- B. 40 modules in landscape
- C. 28 modules in portrait
- D. 35 modules in landscape
Answer: D
NEW QUESTION 52
When doinginitial inspections on a PV system that was installed using racking that is not compliant with UL.2703, an inspector should pay special attention to which electrical attribute?
- A. Racking needs to be bonded to a supplemental grounding electrode conductor.
- B. The grounding conductor must be bonded directly to the primary grounding electrode.
- C. The equipment grounding conductor must be irreversibly spliced.
- D. Each PV module needs to be bonded to the equipment grounding conductor.
Answer: D
NEW QUESTION 53
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. 10 AWG
- C. 6 AWG
- D. 4 AWG
Answer: D
NEW QUESTION 54
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 55
An installer has decided to use 31 in. long. 3.1/2 in diameter conical ground screws as the footings for a
3.840W 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: C
NEW QUESTION 56
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 57
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 58
A AWG THWN-2 PV output conductors from two PV arrays are run in the same 3 in, conduit to their respective functionally grounded inverters in the building. The three PV source circuits are each protected by a
15A fuse in the combiner box at the array. The conduit, which is strapped directly to the roof,is exposed to design temperatures of 140' F (60'C) during its 30 ft.
Exposed run. What is the MAXIMUM current carrying capability value of the PV output conductors?
- A. 54A
- B. 61A
- C. 34A
- D. 42A
Answer: C
NEW QUESTION 59
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