Polymer Technology Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is None of these Isoprene Chloroethane Chlorophrene None of these Isoprene Chloroethane Chlorophrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres. Saturated polyester Viscose rayon Acrylic Polyvinyl acetate Saturated polyester Viscose rayon Acrylic Polyvinyl acetate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids? Starch Proteins Cellulose Nucleic acids Starch Proteins Cellulose Nucleic acids ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Phenol Para-cresol Resorcinol Melamine Phenol Para-cresol Resorcinol Melamine ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermocole (expanded polystyrene) is not used for Packing of delicate electronic gadgets High temperature thermal insulation in furnaces Accoustic control and ceiling for building Low temperature thermal insulation as in refrigerator and air conditioners Packing of delicate electronic gadgets High temperature thermal insulation in furnaces Accoustic control and ceiling for building Low temperature thermal insulation as in refrigerator and air conditioners ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Decreases with increase in molecular weight Does not vary with temperature rise Decreases with increase in temperature Increases with increase in temperature Decreases with increase in molecular weight Does not vary with temperature rise Decreases with increase in temperature Increases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
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