Polymer Technology Vinyl flooring is done using __________ sheets. PVC Polythene Polypropylene Polyvinyl acetate PVC Polythene Polypropylene Polyvinyl acetate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Synthetic rubber Deforms, if stretched to double of its original dimension Is softer at higher temperature Is brittle at low temperature Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Deforms, if stretched to double of its original dimension Is softer at higher temperature Is brittle at low temperature Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyesters are manufactured by the polycondensation reaction of Carboxylic acid with ethylene Dibasic acid with dihydric alcohol Inorganic acid with ethylene glycol A single monomer Carboxylic acid with ethylene Dibasic acid with dihydric alcohol Inorganic acid with ethylene glycol A single monomer 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. Rayon Polyvinyl acetate PVC Polythene Rayon Polyvinyl acetate PVC Polythene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are Easily reshaped & reused More brittle Formed by addition polymerisation only Soluble in all organic solvents Easily reshaped & reused More brittle Formed by addition polymerisation only Soluble in all organic solvents ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polythene is most prone to stress-cracking Linear low density Cross-linked High density Low density Linear low density Cross-linked High density Low density ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS