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Solar heating

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Chapter 1-Quiz

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1. What is the basic principle of a solar water heater?
Use electricity to heat the water Use the sun's thermal energy to heat the water Use wind energy to heat the water
2. Which type of solar water heater operates without a pump, using a natural circulation principle?
Thermosiphon water heater Forced circulation water heater Heat pump water heater
3. What type of solar panel is the most efficient for a water heater?
Polycrystalline silicon panels Monocrystalline silicon panels Copper panels
4. What is the main advantage of a forced circulation solar water heater?
It is more economical It operates without electricity It is more suited to climates with variable sunlight
5. What is the main disadvantage of a thermosiphon solar water heater?
It requires a lot of maintenance It performs poorly with low or variable sunlight It is very expensive
6. Which type of solar water heater is most suitable for areas with little sun?
Forced circulation water heater Thermosiphon water heater Heat pump water heater
7. What is the advantage of a heat pump solar water heater?
It heats water only in summer It is suitable for high hot water needs It requires no additional installation
8. What is the ideal orientation of solar panels for a solar water heater in the northern hemisphere?
North East South
9. What maintenance is required for a solar water heater?
No maintenance Annual inspection of the panels and tank Monthly cleaning of the panels
10. What is the average efficiency of a solar water heater?
5% 50% 70% to 80%
11. Can a solar water heater be used for home heating?
Yes, if a solar heating system is installed No, it is only used to produce domestic hot water Yes, it is always integrated into a heating system
12. What is the essential element for a solar water heater to work efficiently?
A large surface of solar panels A very large storage tank Sufficient sunlight