Get Ready to Pass the PVIP exam Right Now Using Our NABCEP Board Exam Package [Q10-Q24]

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Get Ready to Pass the PVIP exam Right Now Using Our NABCEP Board Exam Package

Enhance Your Career With Available Preparation Guide for PVIP Exam

Achieving NABCEP PVIP certification is a significant accomplishment for individuals working in the solar industry. It demonstrates their commitment to professionalism, safety, and quality in their work. PV Installation Professional (PVIP) Board Certification certification is recognized by the industry as the gold standard for PV installation professionals and is often required by employers and government agencies for certain types of projects. Additionally, NABCEP certified professionals are listed in a national registry, which helps potential customers and employers identify qualified individuals for their solar energy needs.

NABCEP PVIP Certification Exam is designed to test an individual’s knowledge and skills in the installation of photovoltaic (PV) solar systems. PV Installation Professional (PVIP) Board Certification certification is recognized as the gold standard in the solar industry, and it is often required by employers and government agencies for certain solar-related jobs. PVIP exam covers a wide range of topics, including safety, design, installation, and maintenance of PV systems.

NO.10 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?

The system has experienced above-average degradation and a module warranty claim should be explored.

A combination of normal module degradation combined with cloudy weather has caused lower output in the past few years.

There is a problem with the DAS because the peak sun hours do not correlate with production values and the das should be repaired.

There is an intermittent inverter failure that is causing production to be lower than expected and the inverter should be repaired.

NO.11 An installer is using ½ in lag boits to secure roof-monitoring hardware to rafters through a roof deck. Which of the following should the installer predrill?

A pilot hole one-half the length of the bolt

A pilot hole one-fourth the length of the bolt

A 1/8 in, pilot hole through the roof into the rafter

A 5/16 in pilot hole through the roof into the rafter

NO.12 A PV system’s capacity factor is 18%. The array is 10 kW, and it operates 365 days/year. What is the annual energy output?

12,264 kWh

15,768 kWh

18,000 kWh

21,024 kWh

NO.13 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?

The equipment grounding conductor must be irreversibly spliced.

Each PV module needs to be bonded to the equipment grounding conductor.

Racking needs to be bonded to a supplemental grounding electrode conductor.

The grounding conductor must be bonded directly to the primary grounding electrode.

NO.14 A project is using a PV module with a 25-38dc maximum power voltage range and a single input inverter with an operating windows of 250vdc-450dc. The dwelling the system is to be installed on has a 5:12 roof with a southeastem face that can accommodate 14 modules and southwestern face that can accommodate 10 modules. What is the MAXIMUM number of modules that can be installed for proper inverter maximum power point tracking?

NO.15 A ground-fault protection device (GFPD) trips during commissioning. What is the most likely cause per NEC 690.5?

Open circuit in the array

Reverse polarity in a source circuit

Insulation failure between a conductor and ground

Overcurrent in the inverter output

NO.16 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?

10 AWG

8 AWG

6 AWG

4 AWG

NO.17 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?

Perform visual inspection, check polarity and measure open-circuit voltage.

Perform visual inspection, install source circuit fuses, and measure open-circuit voltage.

Perform visual inspection, install source circuit fuses, and measure open-circuit current.

Install source circuit fuses, verify that all equipment-grounding conductors are secure, and measure ac line voltage.

NO.18 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?

28 modules in portrait

30 modules in portrait

35 modules in landscape

40 modules in landscape

NO.19 Which of the following requires a UL listing or its equivalent?

System manuals

Lag screws

Grounding electrode clamp

System labels and markings

NO.20 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?

Each set of twisted pairs must be provided with properly rated fuses that are physically located at the battery.

The instrument wiring must be large (larger than # 18 AWG) to handle current from each battery and must be a double- insulated type.

Individual nonfused disconnects are required for each set of wiringbecause all of the signals must be isolated from each other.

An appropriately rated and sized of resistive elements for each twisted pair be located at, or very near to, the data logger terminals

NO.21 A PV system interconnects at a 480V three-phase service. The inverter output current is 20A per phase. What is the minimum size of the equipment grounding conductor (EGC) per NEC 250.122 if the OCPD is 30A?

14 AWG

12 AWG

10 AWG

8 AWG

NO.22 During a PV system inspection, an installer notices that the rapid shutdown system fails to de-energize the array within 30 seconds of initiation. What is the most likely cause based on NEC 690.12 requirements?

The rapid shutdown switch is installed more than 10 feet from the array

The system lacks a compatible rapid shutdown device

The inverter is not listed for rapid shutdown compliance

The array conductors exceed the maximum allowable voltage

NO.23 When commissioning a PV system, which test is most critical to verify proper operation of the array before connecting to the inverter?

Insulation resistance test

Open-circuit voltage test

Short-circuit current test

Ground-fault detection test

NO.24 Which insulation color is allowed for a current-carrying roottop dc conductor on a functionally grounded 6kw PV system?

Red

White