Polymer Technology __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine. Alkyd Amino Phenolic Epoxy Alkyd Amino Phenolic Epoxy ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent. 1500-2000 2000-2500 1000-1500 1-1000 1500-2000 2000-2500 1000-1500 1-1000 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature maintained in the emulsion polymerisation reactor for PVC manufacture is about __________ ° C. 50 250 -20 500 50 250 -20 500 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polypropylene compared to polythene is All of these Harder Stronger Lighter All of these Harder Stronger Lighter ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation reaction of polymerisation Produces only thermoplastic material Does not need any catalyst Does not produce linear polymers Produces epoxy polymers Produces only thermoplastic material Does not need any catalyst Does not produce linear polymers Produces epoxy polymers ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres. PVC Polyvinyl acetate Rayon Polythene PVC Polyvinyl acetate Rayon Polythene ANSWER DOWNLOAD EXAMIANS APP
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