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NABCEP PVIP Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Installation | 38% | - Mechanical installation
|
| System Design | 32% | - Grounding and bonding design
- Site assessment and analysis
|
| Operations & Maintenance | 13% | - Troubleshooting and fault diagnosis - Safety and maintenance documentation - System performance monitoring and reporting - Preventive maintenance procedures |
| System Commissioning | 17% | - Pre-commissioning verification
|
NABCEP PV Installation Professional (PVIP) Board Certification Sample Questions:
When running horizontal 1-1/4 in, electrical metallic tubing (EMT) with compression fittings, what is the MAXIMUM permissible distance between condult supports?
- A. 14 ft
- B. 10 ft
- C. 20 ft
- D. 3 ft
Correct Answer: B 🗳️
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 stand-alone system configuration can adequately supply current to all protected load branch circuit.
- B. The protected loads must have automatic restart function.
- C. The peak current from the sealed lead- acid batteries must not exceed peak demand currents.
- D. All protected loads are connected in multiwire branch circuits.
Correct Answer: D 🗳️
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. Supplement ¼ in, in thick aluminum plate electrode buried 30 in. down and located 7 ft, away.
- D. Buried water piping system using 40 ft. of 2 in. PVC piping located 10 ft awat.
Correct Answer: B 🗳️
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. Connecting the service panel to an auxiliary ground used by a lightning protection system
- B. Connecting the water pipe to a gas pipe that is known to be solidly grounded
- C. Connecting the water pipe to the service entrance panel metal structure
- D. Connection the service panel to a copper-clad steel ground rod near the panel
Correct Answer: C 🗳️
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. 200A
- C. 40A
- D. 32A
Correct Answer: D 🗳️
