Polymer Technology Flexible plastic pipes are made of High density polyethylene (HDPE) Low density polyethylene (LDPE) Polypropylene Unsaturated polyester High density polyethylene (HDPE) Low density polyethylene (LDPE) Polypropylene Unsaturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher Hardness, rigidity & brittleness Tensile strength Melting point Densities Hardness, rigidity & brittleness Tensile strength Melting point Densities ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers shows the highest anti-tacking properties? Melamine formaldehyde resin Alkyd resin Phenolic resin Epoxy resin Melamine formaldehyde resin Alkyd resin Phenolic resin Epoxy resin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the Strengthening of plaster of paris Tanning of leather Electrical insulation purpose Decorative laminates Strengthening of plaster of paris Tanning of leather Electrical insulation purpose Decorative laminates 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. 250-280 -20 to 25 100 to 150 50 to 75 250-280 -20 to 25 100 to 150 50 to 75 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its Flexibility Tensile strength All of these Chemical resistance Flexibility Tensile strength All of these Chemical resistance ANSWER DOWNLOAD EXAMIANS APP
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