NABCEP PVIP : PV Installation Professional (PVIP) Board Certification

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NABCEP PVIP Exam Syllabus Topics:

NABCEP PV Installation Professional (PVIP) Board Certification Sample Questions:

1. An installer is hired to troubleshoot a 10-year-old roottop system with open-circuit voltage 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) Short-circuit current is present at the PV source-circuit terminals of the disconnect device because of electrical leakage.
B) Ungrounded conductors are conducing current event the ground-fault device has activated.
C) Insulation has become an electrical conductor since it has changed its composition.
D) Cracked insulation has allowed water intrusion that resulted in oxidation of the copper conductors.

2. Most electric service providers require interactive PV equipment to comply with which for interconnection to their distribution grid?

A) UL 16998
B) UL 1741
C) UL 2703
D) UL 60947-1

3. 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) Remove any surge suppression devices from the circuits.
B) Test for current on each source circuit coming into the combiner box.
C) Open all fuse holders in the combiner box.
D) Test for voltage on the positive out

4. When running horizontal 1-1/4 in, electrical metallic tubing (EMT) with compression fittings, what is the MAXIMUM permissible distance between condult supports?

A) 10 ft
B) 20 ft
C) 3 ft
D) 14 ft

5. A rooftop PV array uses a ballasted racking system with a total weight of 4 psf. The roof's maximum allowable load is 20 psf, including a snow load of 15 psf. Is this installation permissible?

A) No, exceeds total load
B) Yes, if snow load is mitigated
C) Yes, with no restrictions
D) No, requires structural reinforcement

Solutions: