Polymer Technology Thermocole (expanded polystyrene) is not used for Accoustic control and ceiling for building Packing of delicate electronic gadgets High temperature thermal insulation in furnaces Low temperature thermal insulation as in refrigerator and air conditioners Accoustic control and ceiling for building Packing of delicate electronic gadgets High temperature thermal insulation in furnaces Low temperature thermal insulation as in refrigerator and air conditioners ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following additives are added to plastics to make it impervious to X-rays? Carborundum Phthalic acid Asbestos Barium salt Carborundum Phthalic acid Asbestos Barium salt ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural fibre? Silk Viscose rayon Wool Cotton Silk Viscose rayon Wool Cotton ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vulcanisation of rubber does not increase its Weight & strength Elasticity & water solubility Softness Oxidation resistance Weight & strength Elasticity & water solubility Softness Oxidation resistance ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A copolymer is formed by the combination of two or more monomer molecules None of these Of the same monomer by elimination of small molecules of water In a chain without the elimination of water With the elimination of small amount of water None of these Of the same monomer by elimination of small molecules of water In a chain without the elimination of water With the elimination of small amount of water ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Dacron (or terylene) fibres as compared to nylon fibres have Poorer dyeability Poorer resistance to alkalis Better heat & acid resistant properties All of these Poorer dyeability Poorer resistance to alkalis Better heat & acid resistant properties All of these ANSWER DOWNLOAD EXAMIANS APP
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