Polymer Technology __________ polythene is most prone to stress-cracking Linear low density Low density High density Cross-linked Linear low density Low density High density Cross-linked ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyurathane can not be used to make Automobile cushion Coating and adhesive Thermal insulation in refrigerator Fibre reinforced plastic (FRP) Automobile cushion Coating and adhesive Thermal insulation in refrigerator Fibre reinforced plastic (FRP) ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Neoprene is rendered non-inflammable, because of Its linear chain structure Its cross-linked structure The absence of chlorine atoms in its monomer The presence of chlorine atoms in its monomer Its linear chain structure Its cross-linked structure The absence of chlorine atoms in its monomer The presence of chlorine atoms in its monomer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The rate controlling step in the manufacture of silicone rubber is the Polymer termination step Condensation of siloxane to silicone None of these Initial hydrolysis of silicone monomer Polymer termination step Condensation of siloxane to silicone None of these Initial hydrolysis of silicone monomer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is generally not drawn into fibre? Saturated polyesters Unsaturated polyesters Polyamide Polyacrylonitrile Saturated polyesters Unsaturated polyesters Polyamide Polyacrylonitrile ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to Increase its viscosity Reduce its viscosity to permit easier processing Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce the time of vulcanisation and quantity of vulcanising agent Increase its viscosity Reduce its viscosity to permit easier processing Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce the time of vulcanisation and quantity of vulcanising agent ANSWER DOWNLOAD EXAMIANS APP
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