Polymer Technology Rain coats are made of PVC Neoprene SBR Polyurathane PVC Neoprene SBR Polyurathane ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer? Bakelite (phenol formaldehyde) Polythene Polyester Nylon-6 Bakelite (phenol formaldehyde) Polythene Polyester Nylon-6 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene which is a monomer for the production of polystyrene, is commercially produced by the Reacting ethylene oxide with acetal-dehyde Catalytic dehydrogenation of ethyl benzene Dehydration of ethyl alcohol followed by hydrogenation Fermentation of starch Reacting ethylene oxide with acetal-dehyde Catalytic dehydrogenation of ethyl benzene Dehydration of ethyl alcohol followed by hydrogenation Fermentation of starch ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are 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 250°C and 10 kgf/cm² 50°C and 1 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres. Polyester Polypropylene Acrylic Nylon 6:6 Polyester Polypropylene Acrylic Nylon 6:6 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon-66 is a polyamide of Adipic acid and methyl amine Hexamethylene diamine and adipic acid None of these Vinyl chloride and formaldeyde Adipic acid and methyl amine Hexamethylene diamine and adipic acid None of these Vinyl chloride and formaldeyde ANSWER DOWNLOAD EXAMIANS APP
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