Thermocol (expanded polystyrene) is not used for __________________?
Correct answer: C. High temperature thermal insulation in furnaces
- A. Low temperature thermal insulation as in refrigerator and air conditioners
- B. Acoustic control and ceiling for building
- C. High temperature thermal insulation in furnaces
- D. Packing of delicate electronic gadgets
Explanation
Expanded polystyrene softens and decomposes at elevated temperatures, so it is unsuitable for furnace insulation. Its low thermal conductivity makes it useful for refrigeration, acoustic control and protective packaging.
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