Polymer Technology Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is Teflon Bakelite Nylon-66 Polyester Teflon Bakelite Nylon-66 Polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Silicon rubber Silicone rubber Butyl rubber Nitrile rubber Silicon rubber Silicone rubber Butyl rubber Nitrile rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural polymer? Polyisoprene Polyurethane Nucleic acids e.g. RNA and DNA Polysaccharides Polyisoprene Polyurethane Nucleic acids e.g. RNA and DNA Polysaccharides 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. 100 to 150 -20 to 25 50 to 75 250-280 100 to 150 -20 to 25 50 to 75 250-280 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plastic articles are normally produced by __________ moulding. Green sand Dry sand Injection Shell Green sand Dry sand Injection Shell ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resin is A polyester An elastomer Not used for surface coating A good abrasive A polyester An elastomer Not used for surface coating A good abrasive ANSWER DOWNLOAD EXAMIANS APP
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