Polymer Technology Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically Polymethyl methacrylate (PMMA) Polytetraflouroethylene(PTFE) Polycarbonates Phenolic resins Polymethyl methacrylate (PMMA) Polytetraflouroethylene(PTFE) Polycarbonates Phenolic resins ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is PVC Polyvinyl butyral Polyvinyl alcohol Polyvinyl acetale PVC Polyvinyl butyral Polyvinyl alcohol Polyvinyl acetale ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent. 1-1000 2000-2500 1500-2000 1000-1500 1-1000 2000-2500 1500-2000 1000-1500 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitfile copolymer with butadiene based elastomer, is a/an Thermosetting polymer Engineering plastic Spongy rubber Rigid foam Thermosetting polymer Engineering plastic Spongy rubber Rigid foam ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vulcanisation of rubber does not increase its Weight & strength Oxidation resistance Elasticity & water solubility Softness Weight & strength Oxidation resistance Elasticity & water solubility Softness 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. Acrylic Polyvinyl acetate Viscose rayon Saturated polyester Acrylic Polyvinyl acetate Viscose rayon Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
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