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Photovoltaic Systems

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Chapter 1 - Quiz

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1. What is the semiconductor material mainly used in the manufacture of conventional photovoltaic cells?
Germanium Silicon Copper Boron
2. What happens when a photon hits a semiconductor like silicon in a photovoltaic cell?
It is immediately thought out It generates heat directly It rips off electrons, creating movement It charges the battery directly
3. To increase the output voltage of a photovoltaic module, the cells are connected:
In parallel In series Triangle Star
4. The efficiency of a solar panel represents:
Its total lifespan The percentage of solar energy converted into electricity Its cost per watt-peak Its resistance to bad weather
5. What is the typical average yield range of commercial solar panels?
5% to 10% 15% to 20% 30% to 40% 50% to 60%
6. What is the main environmental benefit of solar PV?
Its low initial cost Its continuous electricity production day and night Reducing greenhouse gas emissions The ease of recycling the panels
7. For a residential installation, what does the integration of batteries allow?
Sell more electricity to the grid To increase the peak power of the panels Continuous operation, even at night Reduce the initial cost of installation
8. What is the main function of an inverter in a photovoltaic system?
Storing excess energy Convert direct current (DC) to alternating current (AC) Increase the DC voltage Automatically clean the panels
9. The rated power of a solar panel is expressed in:
Kilowatt-hour (kWh) Watts per square meter (W/m²) Peak watts (Wp) Volts (V)
10. What is the main environmental limitation of photovoltaic systems?
Dependence on weather conditions All trees around the solar field must be cut down They require a lot of maintenance They occupy large areas of land