Polymer Technology The process involved in converting rubber into a thin sheet or coating it on fabric is called Vulcanisation Mastication Calendering Extrusion Vulcanisation Mastication Calendering Extrusion ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Silicon rubber Butyl rubber Silicone rubber Nitrile rubber Silicon rubber Butyl rubber Silicone rubber Nitrile rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically Polytetraflouroethylene(PTFE) Polycarbonates Polymethyl methacrylate (PMMA) Phenolic resins Polytetraflouroethylene(PTFE) Polycarbonates Polymethyl methacrylate (PMMA) Phenolic resins ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding Glycerol None of these Nitro cellulose Camphor Glycerol None of these Nitro cellulose Camphor ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine. Epoxy Alkyd Amino Phenolic Epoxy Alkyd Amino Phenolic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Synthetic polymer produced by using terephthalic acid and ethylene glycol is PVC Polyesterene Terylene Nylon-66 PVC Polyesterene Terylene Nylon-66 ANSWER DOWNLOAD EXAMIANS APP