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NABCEP PVIP Exam Syllabus Topics:

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

1. A 10 kW PV array uses 300W modules with a Voc of 40V and an Isc of 9A. The inverter has a maximum DC input of 600V and 25A. What is the maximum number of modules that can be connected in a single string?

A) 15
B) 12
C) 14
D) 16

2. A 15 kW system has a total derate factor of 0.87. After 3 years at 1% degradation/year, what is the output?

A) 12.6 kW
B) 13.2 kW
C) 13.0 kW
D) 12.8 kW

3. Which of the following is an NEC requirement regarding access for large-scale PV electric power production facilities?

A) All fencing and associated gates must have ac and dc current and voltage exposure labvels and must be electrically isolated from the solar facility.
B) Field-applied hazard markings must be installed, and access to the supply station is to be restricted by fencing or other adequate means.
C) Access to remote isolating equipment for servicing is allowed for individual other than qualified persons when the equipment is enclosed within a secure structure.
D) Arc flash warning labels must be field-applied by the installer at all access points for qualified persons and at the point of the utility interconnection directory.

4. Thermal imaging infrared cameras can be used to help find which of the following system operational issues?

A) Loose PV input circuit terminations in a combiner box
B) Battery state of charge in a multimode system
C) Blind spot fault in a source circuit
D) Intensity of solar insolation to determine power output

5. 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?

A) 24
B) 18
C) 20
D) 14

Solutions: