Polymer Technology Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their Molecular sizes Resistance to heat Magnitude of intermolecular forces Polymerisation mechanism Molecular sizes Resistance to heat Magnitude of intermolecular forces Polymerisation mechanism ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following additives are added to plastics to make it impervious to X-rays? Phthalic acid Barium salt Asbestos Carborundum Phthalic acid Barium salt Asbestos Carborundum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Bakelite (phenol-formaldehyde) resin can not be used as Electrical insulation Decorative laminates Decorative paint Glass reinforced plastics Electrical insulation Decorative laminates Decorative paint Glass reinforced plastics ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation reaction of polymerisation Produces epoxy polymers Does not produce linear polymers Produces only thermoplastic material Does not need any catalyst Produces epoxy polymers Does not produce linear polymers Produces only thermoplastic material Does not need any catalyst ANSWER DOWNLOAD EXAMIANS APP
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 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 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl acetate is never used for making Adhesives Fibres Moulded articles All of these Adhesives Fibres Moulded articles All of these ANSWER DOWNLOAD EXAMIANS APP
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