Polymer Technology Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Silicone rubber Butyl rubber Nitrile rubber Silicon rubber Silicone rubber Butyl rubber Nitrile rubber Silicon rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Resorcinol Phenol Melamine Para-cresol Resorcinol Phenol Melamine Para-cresol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) 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 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. Polycarbonate Polyester Polysulphone Polyurathane Polycarbonate Polyester Polysulphone Polyurathane ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl acetate is never used for making Fibres Moulded articles All of these Adhesives Fibres Moulded articles All of these Adhesives ANSWER DOWNLOAD EXAMIANS APP
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