Polymer Technology Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature. Polyacrylonitrile Nylon Polyester Polypropylene Polyacrylonitrile Nylon Polyester Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Density of high density polythene is about __________ gm/c.c. 1.18 0.99 1.05 0.95 1.18 0.99 1.05 0.95 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is an inorganic polymer? Bakelite Perspex Silicones Teflon Bakelite Perspex Silicones Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycaprolactum (Nylon - 6) is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent. 75 50 99 90 75 50 99 90 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to Reduce the time of vulcanisation and quantity of vulcanising agent Reduce its viscosity to permit easier processing Increase its viscosity Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce the time of vulcanisation and quantity of vulcanising agent Reduce its viscosity to permit easier processing Increase its viscosity Protect rubber goods from attack by oxygen & ozone present in the atmosphere ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. Phenol formaldehyde Epoxy Urea formaldehyde Melamine formaldehyde Phenol formaldehyde Epoxy Urea formaldehyde Melamine formaldehyde ANSWER DOWNLOAD EXAMIANS APP
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