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NABCEP PVIP Exam Syllabus Topics:

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

Question 1

A PV system is designed for a location with a peak sun hours (PSH) value of 4.5. The daily load is 18 kWh, and the system efficiency is 80%. What is the minimum array size required in kW?

A. 7.5 kW
B. 6.0 kW
C. 4.0 kW
D. 5.0 kW

Question 2

A PV output circuit requires a disconnecting means per NEC 690.13. Where must it be located?

A. Within sight of the inverter
B. At the point of interconnection
C. Within 10 feet of the array
D. At the main service panel

Question 3

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 peak current from the sealed lead- acid batteries must not exceed peak demand currents.
B. The stand-alone system configuration can adequately supply current to all protected load branch circuit.
C. The protected loads must have automatic restart function.
D. All protected loads are connected in multiwire branch circuits.

Question 4

A grid-tied PV system uses a transformerless inverter with a maximum DC input of 1000V. The array consists of 20 modules, each with a Voc of 45V. What is the NEC 690.7 correction factor for a low temperature of -15° C if the temperature coefficient is -0.30%/°C?

A. 1.18
B. 1.21
C. 1.12
D. 1.15

Question 5

According to the NEC, if the PV system disconnect and the building service disconnect are at different locations, there MUST be a/an:

A. Interface that shuts down the PV system if the utility connection is lost.
B. Means of locking out both disconnects when the PV system inverter is being serviced.
C. Permanent plaque or directory that indicates the location of the PV utility connection.
D. Permanent plaque or directory that indicates the locations of both disconnects.

Solutions: