Polymer Technology In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is PVC Polypropylene Polybutadiene Terylene PVC Polypropylene Polybutadiene Terylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6. 50 to 75 250-280 100 to 150 -20 to 25 50 to 75 250-280 100 to 150 -20 to 25 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Tyres are made by Injection moulding Compression moulding Rotational moulding Extrusion Injection moulding Compression moulding Rotational moulding Extrusion ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Orlan fibre which is used as a wool sub stitute is Polyacrylonitrile Polymethylmethacrylate (PMMA) A natural polymeric fibre An amorphous polymer Polyacrylonitrile Polymethylmethacrylate (PMMA) A natural polymeric fibre An amorphous polymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Scouring is a finishing operation during the manufacture of fibre, which aims at __________ of fibres. Dyeing/colouring Detergent solution washing Improving the stretchability Glycol soaking Dyeing/colouring Detergent solution washing Improving the stretchability Glycol soaking 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? Polyester Bakelite (phenol formaldehyde) Nylon-6 Polythene Polyester Bakelite (phenol formaldehyde) Nylon-6 Polythene ANSWER DOWNLOAD EXAMIANS APP
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