Polymer Technology The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is Polyvinyl alcohol Polyvinyl butyral Polyvinyl acetale PVC Polyvinyl alcohol Polyvinyl butyral Polyvinyl acetale PVC ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ tubes are good substitude for human blood vessels onrheart by-pass operation. Teflon/dacron Polythene PVC Polystyrene Teflon/dacron Polythene PVC Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Synthetic rubber Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is softer at higher temperature Is brittle at low temperature Deforms, if stretched to double of its original dimension Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is softer at higher temperature Is brittle at low temperature Deforms, if stretched to double of its original dimension ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800? 50000 51600 49200 50800 50000 51600 49200 50800 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. Acrylic Polypropylene Nylon 6:6 Polyester Acrylic Polypropylene Nylon 6:6 Polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The major component of acrylic fibres is Polyesters Polyacrylonitrile Polyolefins Polyamides Polyesters Polyacrylonitrile Polyolefins Polyamides ANSWER DOWNLOAD EXAMIANS APP
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