Polymer Technology Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Silicone rubber Nitrile rubber Silicon rubber Butyl rubber Silicone rubber Nitrile rubber Silicon rubber Butyl rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Phenol Resorcinol Para-cresol Melamine Phenol Resorcinol Para-cresol Melamine ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Use emulsion polymerisation methods Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer Are made by addition polymerisation reaction only Use emulsion polymerisation methods Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer Are made by addition polymerisation reaction only ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance. Polyester Polycarbonate Polyurathane Polysulphone Polyester Polycarbonate Polyurathane Polysulphone ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl acetate is never used for making Moulded articles All of these Adhesives Fibres Moulded articles All of these Adhesives Fibres ANSWER DOWNLOAD EXAMIANS APP
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