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NABCEP PVIP Exam Syllabus Topics:

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

1. 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) 20
B) 24
C) 14
D) 18

2. A 5 kW system has a PR of 0.80 and operates at 4.5 PSH. What is the monthly energy output?

A) 600 kWh
B) 675 kWh
C) 720 kWh
D) 540 kWh

3. A ground-mount PV system is planned for a site with a soil bearing capacity of 2000 psf. The array footing design requires a minimum bearing pressure of 1500 psf. What is the safety factor for this installation?

A) 2.0
B) 1.33
C) 0.75
D) 1.5

4. 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?

A) The rapid shutdown switch is installed more than 10 feet from the array
B) The array conductors exceed the maximum allowable voltage
C) The system lacks a compatible rapid shutdown device
D) The inverter is not listed for rapid shutdown compliance

5. A PV system is installed in a location with an average annual ambient temperature of 30°C. If the module's NOCT (Nominal Operating Cell Temperature) is 45°C, what is the expected cell temperature under standard operating conditions (800 W/m² irradiance)?

A) 55°C
B) 50°C
C) 45°C
D) 60°C

Solutions: