Free practice test

Solar Panel Installer Practice Test

Check what you know about the solar panel installer job with 15 free questions and instant explanations.

Updated By the Career Education Institute Curriculum Team
About this practice test

15 multiple-choice questions on solar panel installer knowledge, safety and vocabulary. Submit to see your score and explanations, or open any question’s answer as you go. Nothing is saved or shared.

Question 1 of 15What does an inverter do?
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Answer: Converts DC to AC power. Inverters convert DC to usable AC.

Question 2 of 15Modules wired in series form a:
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Answer: String. Series connections form a string.

Question 3 of 15Kilowatt-hours measure:
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Answer: Energy. kWh is energy over time.

Question 4 of 15Why must roof attachments hit the rafter?
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Answer: To provide structural strength. Attachments must anchor into structure.

Question 5 of 15When are PV modules energized?
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Answer: Whenever light hits them. Light produces voltage.

Question 6 of 15Which term matches this definition: “A solar panel made of connected PV cells.”
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Answer: Module. Module: A solar panel made of connected PV cells.

Question 7 of 15What does “Inverter” mean?
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Answer: Converts DC power from panels into AC power used in buildings.. Inverter: Converts DC power from panels into AC power used in buildings.

Question 8 of 15Which term matches this definition: “The compass direction an array faces.”
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Answer: Azimuth. Azimuth: The compass direction an array faces.

Question 9 of 15What does “Net metering” mean?
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Answer: A billing arrangement crediting customers for excess solar power sent to the grid.. Net metering: A billing arrangement crediting customers for excess solar power sent to the grid.

Question 10 of 15Which term matches this definition: “The angle of modules relative to horizontal.”
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Answer: Tilt. Tilt: The angle of modules relative to horizontal.

Question 11 of 15What does “Open-circuit voltage (Voc)” mean?
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Answer: The maximum voltage of a module or string with no load.. Open-circuit voltage (Voc): The maximum voltage of a module or string with no load.

Question 12 of 15Which term matches this definition: “A unit of energy: what utilities bill for.”
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Answer: Kilowatt-hour (kWh). Kilowatt-hour (kWh): A unit of energy: what utilities bill for.

Question 13 of 15What does “Photovoltaic (PV)” mean?
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Answer: Technology that converts sunlight directly into electricity.. Photovoltaic (PV): Technology that converts sunlight directly into electricity.

Question 14 of 15Which term matches this definition: “A unit of power; system size is rated in kW.”
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Answer: Kilowatt (kW). Kilowatt (kW): A unit of power; system size is rated in kW.

Question 15 of 15What does “Rapid shutdown” mean?
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Answer: NEC-required capability to quickly reduce voltage on rooftop conductors for firefighter safety.. Rapid shutdown: NEC-required capability to quickly reduce voltage on rooftop conductors for firefighter safety.

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