Polymer Technology The rate controlling step in the manufacture of silicone rubber is the Initial hydrolysis of silicone monomer 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 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Trade name of __________ is neoprene. Poly vinyl acetate Polyisoprene Polytetraflouroethylene Polychloroprene Poly vinyl acetate Polyisoprene Polytetraflouroethylene Polychloroprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres. Nylon 6:6 Acrylic Polyester Polypropylene Nylon 6:6 Acrylic Polyester Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Scouring is a finishing operation during the manufacture of fibre, which aims at __________ of fibres. Detergent solution washing Improving the stretchability Dyeing/colouring Glycol soaking Detergent solution washing Improving the stretchability Dyeing/colouring Glycol soaking ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the Tanning of leather Electrical insulation purpose Strengthening of plaster of paris Decorative laminates Tanning of leather Electrical insulation purpose Strengthening of plaster of paris Decorative laminates ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of Phenol formaldehyde resins Polyesters Cross linked polystyrene Polyamides Phenol formaldehyde resins Polyesters Cross linked polystyrene Polyamides ANSWER DOWNLOAD EXAMIANS APP
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