Polymer Technology Rain coats are made of Neoprene PVC SBR Polyurathane Neoprene PVC SBR Polyurathane ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres. PVC Polythene Rayon Polyvinyl acetate PVC Polythene Rayon Polyvinyl acetate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber (SBR) as compared to natural rubber has All of these Greater amount of heat build up heavy loading Poorer resistance Poor tensile strength All of these Greater amount of heat build up heavy loading Poorer resistance Poor tensile strength ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers is used for making a non stick coating on frying pans? Bakelite PVC Teflon Perspex Bakelite PVC Teflon Perspex ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation reaction of polymerisation 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 Produces epoxy polymers ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6. 250-280 -20 to 25 50 to 75 100 to 150 250-280 -20 to 25 50 to 75 100 to 150 ANSWER DOWNLOAD EXAMIANS APP
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