Polymer Technology Which of the following is not a natural fibre? Wool Viscose rayon Silk Cotton Wool Viscose rayon Silk Cotton ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Softening temperature is 200°C Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods Softening temperature is 200°C Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are added to synthetic plastics to All of these Develop new improved properties not present in the original resin Improve workability during fabrication Impart flexibility All of these Develop new improved properties not present in the original resin Improve workability during fabrication Impart flexibility ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following has the weakest intermolecular forces? Bakelite Nylon-66 Polyisoprene Polystyrene Bakelite Nylon-66 Polyisoprene Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Neoprene is rendered non-inflammable, because of Its linear chain structure Its cross-linked structure The presence of chlorine atoms in its monomer The absence of chlorine atoms in its monomer Its linear chain structure Its cross-linked structure The presence of chlorine atoms in its monomer The absence of chlorine atoms in its monomer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycaprolactum is Rayon Nylon-66 Dacron Nylon-6 Rayon Nylon-66 Dacron Nylon-6 ANSWER DOWNLOAD EXAMIANS APP
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