Polymer Technology Orlan fibre which is used as a wool sub stitute is A natural polymeric fibre An amorphous polymer Polyacrylonitrile Polymethylmethacrylate (PMMA) A natural polymeric fibre An amorphous polymer Polyacrylonitrile Polymethylmethacrylate (PMMA) 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 Decorative laminates Strengthening of plaster of paris Electrical insulation purpose Tanning of leather Decorative laminates Strengthening of plaster of paris Electrical insulation purpose ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. Organic peroxides None of these Hydroflouric acid Sulphuric acid Organic peroxides None of these Hydroflouric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature. Nylon Polyacrylonitrile Polyester Polypropylene Nylon Polyacrylonitrile Polyester Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its Strength Plasticity Weathering characteristics Elasticity Strength Plasticity Weathering characteristics Elasticity 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. Polyvinyl acetate Acrylic Saturated polyester Viscose rayon Polyvinyl acetate Acrylic Saturated polyester Viscose rayon ANSWER DOWNLOAD EXAMIANS APP
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