Polymer Technology Synthetic rubber Is softer at higher temperature Deforms, if stretched to double of its original dimension Is brittle at low temperature Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is softer at higher temperature Deforms, if stretched to double of its original dimension Is brittle at low temperature Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is a natural polyamide fibre. Silk None of these Wool Cotton Silk None of these Wool Cotton 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. Polyester Polyacrylonitrile Nylon Polypropylene Polyester Polyacrylonitrile Nylon Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polypropylene is preferred to polythene, because the former is Non-inflammable Stronger Both B & C Harder Non-inflammable Stronger Both B & C Harder 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 Acrylic Polyvinyl acetate Viscose rayon Saturated polyester Acrylic Polyvinyl acetate Viscose rayon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Dacron is a/an Inorganic polymer Unsaturated polyester Polyester Polyamide Inorganic polymer Unsaturated polyester Polyester Polyamide ANSWER DOWNLOAD EXAMIANS APP
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