Polymer Technology
Thermocole (expanded polystyrene) is not used for

High temperature thermal insulation in furnaces
Packing of delicate electronic gadgets
Low temperature thermal insulation as in refrigerator and air conditioners
Accoustic control and ceiling for building

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Polymer Technology
Dacron is a

Thermosetting material
None of these
Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol
Condensation polymerisation product of hexamethylene diamine and adipic acid

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