Polymer Technology Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Nitrile rubber Silicon rubber Silicone rubber Butyl rubber Nitrile rubber Silicon rubber Silicone rubber Butyl rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Melamine Para-cresol Phenol Resorcinol Melamine Para-cresol Phenol Resorcinol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Are made by addition polymerisation reaction only Contain an epoxy group ( ##### ) at the ends of the polymer Are cross-linked polymers only Use emulsion polymerisation methods Are made by addition polymerisation reaction only Contain an epoxy group ( ##### ) at the ends of the polymer Are cross-linked polymers only Use emulsion polymerisation methods 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 Adhesives Moulded articles All of these Fibres Adhesives Moulded articles All of these Fibres ANSWER DOWNLOAD EXAMIANS APP
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