Polymer Technology Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces PVC Polyester Nylon-6 Dacron PVC Polyester Nylon-6 Dacron ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber (SBR) as compared to natural rubber has All of these Poorer resistance Greater amount of heat build up heavy loading Poor tensile strength All of these Poorer resistance Greater amount of heat build up heavy loading Poor tensile strength ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Silicone rubber Silicon rubber Butyl rubber Nitrile rubber Silicone rubber Silicon rubber Butyl rubber Nitrile rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding Camphor None of these Nitro cellulose Glycerol Camphor None of these Nitro cellulose Glycerol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of stabiliser during PVC manufacture is done to Improve its impact strength Improve its elasticity Reduce the melt viscosity & glass transition temperature Prevent its thermal degradation Improve its impact strength Improve its elasticity Reduce the melt viscosity & glass transition temperature Prevent its thermal degradation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a thermoplastic material? Polystyrene Epoxy polymer Polythene PVC Polystyrene Epoxy polymer Polythene PVC ANSWER DOWNLOAD EXAMIANS APP
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