NABCEP PV Associate Exam 2025 | 170 Verified
Questions & Accurate Answers
1. Describe the role of loads in a photovoltaic system and provide an
example.
Loads are components that store energy for later use, like
batteries.
Loads are devices that consume energy produced by the PV
system, such as lightbulbs.
Loads are the solar panels that generate electricity.
Loads are safety devices that prevent overcurrent in the system.
2. In a solar energy system, if a flow battery is integrated, what advantage
does it provide for energy storage?
It eliminates the need for inverters in the system.
It allows for scalable energy storage capacity based on
electrolyte volume.
It increases the energy loss during storage.
It provides a fixed energy capacity that cannot be adjusted.
3. A car battery causes a current of 2.0 A through a lamp and produces 12 V
across it. What is the power used by the lamp?
6W
48 W
, 0.167 W
24 W
4. If a new solar energy system is being installed in a home, which room
should be evaluated for the placement of a PV dc disconnect to ensure
, compliance with safety regulations?
Any room except the bathroom
Only the attic
Only the kitchen
Only the bedroom
5. What is a common application of lithium batteries in solar energy
systems?
Microinverter
Energy storage system
Bypass diode
Direct coupled system
6. If a photovoltaic array is installed at latitude 45 degrees, what tilt angle
should be used to ensure it faces the sun directly at noon during the
equinox?
30 degrees
15 degrees
45 degrees
60 degrees
7. What is the primary purpose of a transformer in electrical systems?
To regulate current flow
To convert AC voltage to DC voltage
To change one AC voltage to another AC voltage
To store electrical energy
, 8. What kind of energy do flow batteries and rechargeable batteries store?
Correct answer
Electrochemical energy
9. If a different 12V light consumes 2A and is left on for 10 hours, how much
energy will it use in kWh?
0.120 kWh
0.180 kWh
0.240 kWh
0.300 kWh
10. Which of the following is the simplest type of PV systems?
Utility interactive
Stand-alone
Self-regulating
Direct coupled
11. What geographic factor primarily influences the variation in sun path
charts?
Longitude
Latitude
Climate
Altitude
Questions & Accurate Answers
1. Describe the role of loads in a photovoltaic system and provide an
example.
Loads are components that store energy for later use, like
batteries.
Loads are devices that consume energy produced by the PV
system, such as lightbulbs.
Loads are the solar panels that generate electricity.
Loads are safety devices that prevent overcurrent in the system.
2. In a solar energy system, if a flow battery is integrated, what advantage
does it provide for energy storage?
It eliminates the need for inverters in the system.
It allows for scalable energy storage capacity based on
electrolyte volume.
It increases the energy loss during storage.
It provides a fixed energy capacity that cannot be adjusted.
3. A car battery causes a current of 2.0 A through a lamp and produces 12 V
across it. What is the power used by the lamp?
6W
48 W
, 0.167 W
24 W
4. If a new solar energy system is being installed in a home, which room
should be evaluated for the placement of a PV dc disconnect to ensure
, compliance with safety regulations?
Any room except the bathroom
Only the attic
Only the kitchen
Only the bedroom
5. What is a common application of lithium batteries in solar energy
systems?
Microinverter
Energy storage system
Bypass diode
Direct coupled system
6. If a photovoltaic array is installed at latitude 45 degrees, what tilt angle
should be used to ensure it faces the sun directly at noon during the
equinox?
30 degrees
15 degrees
45 degrees
60 degrees
7. What is the primary purpose of a transformer in electrical systems?
To regulate current flow
To convert AC voltage to DC voltage
To change one AC voltage to another AC voltage
To store electrical energy
, 8. What kind of energy do flow batteries and rechargeable batteries store?
Correct answer
Electrochemical energy
9. If a different 12V light consumes 2A and is left on for 10 hours, how much
energy will it use in kWh?
0.120 kWh
0.180 kWh
0.240 kWh
0.300 kWh
10. Which of the following is the simplest type of PV systems?
Utility interactive
Stand-alone
Self-regulating
Direct coupled
11. What geographic factor primarily influences the variation in sun path
charts?
Longitude
Latitude
Climate
Altitude
