[Jan-2022] NABCEP PVIP Test Engine PDF - All Free Dumps from PremiumVCEDump
Get New PVIP Certification – Valid Exam Dumps Questions
NEW QUESTION 42
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. Buried water piping system using 40 ft. of 2 in. PVC piping located 10 ft awat.
- B. Supplemental copper plated steel grounding electrode located 8 ft, away.
- C. Supplemental grounding electrode located 5 ft, away.
- D. Supplement 1/4 in, in thick aluminumplate electrode buried 30 in. down and located 7 ft, away.
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. #10 copper
- B. #8 copper
- C. #12 aluminum
- D. #6 aluminum
Answer: A
NEW QUESTION 44
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 45
The NEC requires that PV systems installed on dwellings incorporate which of the following components?
- A. A lockable utility disconnect at the point-of-utility interconnection
- B. Blocking diodes across each module
- C. A dc ground-fault protect device
- D. Dc lightning surge arrestors
Answer: A
NEW QUESTION 46
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. Battery cabinets, racks, or trays must have a minimum clearance of 12 in. from any wall.
- D. illumination shall be provided by lightingoutlets controlled by automated means only.
Answer: B
NEW QUESTION 47
In the middle of a winter day, the data acquisition system for a ground-mounted PV system with large central inverters sends an email alert that system performance is at 50% based on irradiance and temperature performance calculations. No inverters are completely offline. The closed technician is a 4-hour drive from the site, and there are no cameras on site. Which is the BEST response to this situation?
- A. Call the data acquisition company to report a monitoring system failure.
- B. Report the low performance to theinverter manufacturer and request that a technical be sent to the site for a warranty claim.
- C. Dispatch the technician to the site t investigate the low performance issue in person.
- D. Review power output and weather conditions via the monitoring portal, and review local weather reports.
Answer: D
NEW QUESTION 48
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 49
How should stratification be eliminated in a set of large, stationary, stationary flooded lead-acid batteries?
- A. Add 50% diluted sulfuric acid.
- B. Enable equalization.
- C. Rotate the battery positions
- D. Discharge to 80 depth of discharge.
Answer: B
NEW QUESTION 50
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 51
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. 24A
- B. 32A
- C. 40A
- D. 200A
Answer: B
NEW QUESTION 52
A dwelling has a 200A main load center with a 150 main breaker. Which of the following is the MOST powerful 240V inverter that can be installed in the house using the existing main panelboard with a backfed breaker?
- A. 17, 280W
- B. 21, 600W
- C. 9, 600W
- D. 7, 689W
Answer: A
NEW QUESTION 53
When installing an ungrounded PV system with an open-circuit voltage of 450Vdc and a maximum voltage of
3000Vdc which procedures should be followed to establish an electrically safe condition?
- A. Verify that disconnecting device blades are closed and test conductors using an adequately rated detector.
- B. Mount inverters on nonconductive supports and temporarily ground one dc circuit conductor.
- C. Apply lockout/tagout devices and install a listed isolation transformer.
- D. Determine possible sources electrical supply an avoid exposure to energized conductors or parts.
Answer: D
NEW QUESTION 54
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. The system has experienced above-average degradation and a module warranty claim should be explored.
- C. A combination of normal module degradation combined with cloudy weather has caused lower output in the past few years.
- D. There is an intermittent inverter failure that is causing production to be lower than expected and the inverter should be repaired.
Answer: C
NEW QUESTION 55
Which insulation color is allowed for a current-carrying roottop dc conductor on a functionally grounded 6kw PV system?
- A. Green/yellow
- B. Green
- C. White
- D. Red
Answer: D
NEW QUESTION 56
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 57
......
100% Passing Guarantee - Brilliant PVIP Exam Questions PDF: https://pass4lead.premiumvcedump.com/NABCEP/valid-PVIP-premium-vce-exam-dumps.html