FREE SE Engr. Photovoltaic (PV) System Design Questions and Answers

Question 1

What is the primary function of a photovoltaic (PV) inverter?

Accepted Answer

Convert DC to AC

Answer

Store excess energy

Answer

Increase the voltage

Answer

Protect the solar panels from overheating

Question 2

Which factor most significantly affects the efficiency of a PV panel?

Accepted Answer

The angle and exposure to sunlight

Answer

The type of mounting structure

Answer

The number of solar panels used

Answer

The color of the solar panels

Question 3

What is the main purpose of a maximum power point tracker (MPPT) in a PV system?

Accepted Answer

Improve efficiency by optimizing power output

Answer

Prevent overheating of panels

Answer

Increase panel size

Answer

Reduce battery charging time

Question 4

What is the standard test condition (STC) for measuring PV module performance?

Accepted Answer

1000 W/m² irradiance at 25°C

Answer

500 W/m² irradiance at 20°C

Answer

750 W/m² irradiance at 30°C

Answer

1200 W/m² irradiance at 40°C

Question 5

What is the primary function of a charge controller in a PV system?

Accepted Answer

Regulate battery charging and prevent overcharging

Answer

Convert DC to AC power

Answer

Monitor the performance of the inverter

Answer

Enhance the aesthetics of the solar panel array

Question 6

Which type of solar panel is known for the highest efficiency?

Accepted Answer

Monocrystalline panels

Answer

Polycrystalline panels

Answer

Thin-film panels

Answer

Amorphous silicon panels