Polymer Technology Which of the following is stretched into fibres? Unsaturated polyester Saturated polyester Isoprene Bakelite Unsaturated polyester Saturated polyester Isoprene Bakelite ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The process involved in converting rubber into a thin sheet or coating it on fabric is called Calendering Mastication Extrusion Vulcanisation Calendering Mastication Extrusion Vulcanisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber? Alkylated diphenyl amine Magnesium Thiokol Carbon Alkylated diphenyl amine Magnesium Thiokol Carbon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The main use of butadiene is As a plasticiser for unsaturated polyester None of these As an anti-skimming agent in paint In the manufacture of synthetic rubber As a plasticiser for unsaturated polyester None of these As an anti-skimming agent in paint In the manufacture of synthetic rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polythene is most prone to stress-cracking High density Linear low density Low density Cross-linked High density Linear low density Low density Cross-linked ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon-66 compared to nylon-6 has All of these Lower melting point More abrasion resistant properties Higher hardness All of these Lower melting point More abrasion resistant properties Higher hardness ANSWER DOWNLOAD EXAMIANS APP