Polymer Technology Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ? Water impermeable cellophane Polythene Cellulose acetate Teflon Water impermeable cellophane Polythene Cellulose acetate Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polythene is most prone to stress-cracking Low density High density Linear low density Cross-linked Low density High density Linear low density Cross-linked ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene which is a monomer for the production of polystyrene, is commercially produced by the Fermentation of starch Catalytic dehydrogenation of ethyl benzene Dehydration of ethyl alcohol followed by hydrogenation Reacting ethylene oxide with acetal-dehyde Fermentation of starch Catalytic dehydrogenation of ethyl benzene Dehydration of ethyl alcohol followed by hydrogenation Reacting ethylene oxide with acetal-dehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are 250°C and 10 kgf/cm² 50°C and 1 kgf/cm² 250°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² 250°C and 10 kgf/cm² 50°C and 1 kgf/cm² 250°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ practically possess no elasticity. Epoxy resin Polysulphide rubber Spandex fibre Vulcanite or ebonite Epoxy resin Polysulphide rubber Spandex fibre Vulcanite or ebonite ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Alkyd resin can not be used for making Plasticiser Fibres Film forming materials Paint & varnish Plasticiser Fibres Film forming materials Paint & varnish ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS