Polymer Technology __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine. Amino Alkyd Epoxy Phenolic Amino Alkyd Epoxy Phenolic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Transistor parts and refrigerator components are normally made of Polyester Polystyrene High density polythene Polyurathane Polyester Polystyrene High density polythene Polyurathane 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 Tensile strength Hardness, rigidity & brittleness Densities Melting point Tensile strength Hardness, rigidity & brittleness Densities Melting point ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermocole (expanded polystyrene) is not used for Accoustic control and ceiling for building Packing of delicate electronic gadgets Low temperature thermal insulation as in refrigerator and air conditioners High temperature thermal insulation in furnaces Accoustic control and ceiling for building Packing of delicate electronic gadgets Low temperature thermal insulation as in refrigerator and air conditioners High temperature thermal insulation in furnaces ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is stretched into fibres? Unsaturated polyester Bakelite Saturated polyester Isoprene Unsaturated polyester Bakelite Saturated polyester Isoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres. Rayon Polyvinyl acetate Polythene PVC Rayon Polyvinyl acetate Polythene PVC ANSWER DOWNLOAD EXAMIANS APP
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