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Which of the following is the disadvantage of a flat plate solar collector?

28. Which of the following is the disadvantage of a flat plate solar collector?

1. Flat plate solar collectors do not require orientation towards the sun
2. Flat plate solar collectors have low thermal efficiency
3. An anti-freezing solution has to be used to prevent the freezing of heat transferring fluid
4. Both A and B
5. Both B and C
6. All of the above

Answer: E) Both B and C

Explanation:

Flat plate solar collectors have low thermal efficiency and an anti-freezing solution has to be used to prevent the freezing of heat transferring fluid these are the disadvantage of flat plate solar collectors.