Polymer Technology Addition polymerisation is not involved in the manufacture of Poly vinyl chloride Polyhexamethylene adipamide Low density polythene Polystyrene Poly vinyl chloride Polyhexamethylene adipamide Low density polythene Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to 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 Increase its viscosity ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is produced by polymerisation of chloroprene. Thiokol (a polysulphide rubber) Neoprene Butyl rubber Polyurathane rubber Thiokol (a polysulphide rubber) Neoprene Butyl rubber Polyurathane rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers belong to the class of formaldehyde resin? Melamine resins Teflon Dacron None of these Melamine resins Teflon Dacron None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Melamine Phenol Para-cresol Resorcinol Melamine Phenol Para-cresol Resorcinol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is an inorganic polymer? Silicones Perspex Teflon Bakelite Silicones Perspex Teflon Bakelite ANSWER DOWNLOAD EXAMIANS APP
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