[Mar-2024] NABCEP PVIP DUMPS WITH REAL EXAM QUESTIONS
2024 New Pass4sures PVIP PDF Recently Updated Questions
There are strict prerequisites to taking the NABCEP PVIP Certification Exam. Prospective candidates must have at least one year of professional experience in the PV installation industry, or 40 hours of approved training from a degreed institution. Candidates must also provide documentation of at least 10 hours of advanced training in topics related to the exam, as well as pass a criminal background check. Once these prerequisites have been met, candidates must pass a comprehensive exam covering critical areas of knowledge relevant to PV systems, including design concepts, system sizing, installation techniques, and performance analysis.
NABCEP PVIP Certification Exam evaluates professionals across a range of areas, including the installation of photovoltaic modules, wiring, grounding and bonding, design, safety procedures, and system maintenance. Candidates who successfully pass the exam meet the necessary requirements to become a PV Installation Professional and can earn a prestigious credential that sets them apart from their peers in the field of solar energy.
NEW QUESTION # 28
Which of the following requires a UL listing or its equivalent?
- A. Lag screws
- B. System manuals
- C. System labels and markings
- D. Grounding electrode clamp
Answer: D
NEW QUESTION # 29
Which of the following MUST be referenced for determining a site's design wind speed?
- A. The module manufacture's design wind speed
- B. The ASHRAE Handbook_fundamentals in effect
- C. The NEC version in effect
- D. The jurisdiction's local building code in effect
Answer: B
NEW QUESTION # 30
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 # 31
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. 42A
- C. 34A
- D. 61A
Answer: C
NEW QUESTION # 32
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. High-leg transformer configuration
- D. Supply-side ground fault
Answer: C
NEW QUESTION # 33
The AHJ for enforcement of the NEC has which responsibility?
- A. Inspecting installations under the exclusive control of the electric utility
- B. Approval equipment installation methods for efficiency, convenience, and adequacy for good service
- C. Inspecting factory-installed wire and equipment construction methods
- D. Making interpretations of the rules and deciding on approval of equipment and material
Answer: D
NEW QUESTION # 34
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. Within the array boundary and more than 3.ft from the point of entry of the building.
- C. More than 1 ft, from the PV array or more than 3 ft, from the point of entry of the building.
- D. More than 1 ft, from the VP array and more than 5 ft. In length the building.
Answer: C
NEW QUESTION # 35
A metal condult containing an array circuit with Vmo of 400Vdc is connected to a metal enclosure at the location where the concentric knockouts have been punched by the manufacturer. Which method of attachment should be used?
- A. Threaded coupling
- B. Insulated bushing
- C. Grounding bushing
- D. Sealing locknut
Answer: C
NEW QUESTION # 36
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, install source circuit fuses, and measure open-circuit current.
- B. Perform visual inspection, install source circuit fuses, and measure open-circuit voltage.
- C. Perform visual inspection, check polarity and measure open-circuit voltage.
- D. Install source circuit fuses, verify that all equipment-grounding conductors are secure, and measure ac line voltage.
Answer: C
NEW QUESTION # 37
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. Mount inverters on nonconductive supports and temporarily ground one dc circuit conductor.
- B. Apply lockout/tagout devices and install a listed isolation transformer.
- C. Determine possible sources electrical supply an avoid exposure to energized conductors or parts.
- D. Verify that disconnecting device blades are closed and test conductors using an adequately rated detector.
Answer: C
NEW QUESTION # 38
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 load the protected loads subpanel exceeds the PV system ac rating by 25%.
- C. The total load exceeds the system's energy storage capacity of 14kWh.
- D. The main service panel is no longer compliant with NCC 705.12.
Answer: A
NEW QUESTION # 39
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 current on each source circuit coming into the combiner box.
- B. Open all fuse holders in the combiner box.
- C. Remove any surge suppression devices from the circuits.
- D. Test for voltage on the positive out
Answer: B
NEW QUESTION # 40
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. 14 ft
- C. 3 ft
- D. 10 ft
Answer: D
NEW QUESTION # 41
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. Dc lightning surge arrestors
- D. A dc ground-fault protect device
Answer: A
NEW QUESTION # 42
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. On or no more than 1 m (3. 3 ft) from the service disconnecting meant
- D. At point on the residence designated by the AKJ and fire marshal
Answer: B
NEW QUESTION # 43
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. Insulation has become an electrical conductor since it has changed its composition.
- B. Short-circuit current is present at the PV source-circuit terminals of the disconnect device because of electrical leakage.
- C. Cracked insulation has allowed water intrusion that resulted in oxidation of the copper conductors.
- D. Ungrounded conductors are conducing current event the ground-fault device has activated.
Answer: A
NEW QUESTION # 44
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