Polymer Technology Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids? Nucleic acids Proteins Starch Cellulose Nucleic acids Proteins Starch Cellulose ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber (SBR) is never used for making Gaskets Coated fabrics Soles of shoes Front wheel tyres of aeroplanes (i.e., heavy duty tyres) Gaskets Coated fabrics Soles of shoes Front wheel tyres of aeroplanes (i.e., heavy duty tyres) ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Scouring is a finishing operation during the manufacture of fibre, which aims at __________ of fibres. Improving the stretchability Dyeing/colouring Glycol soaking Detergent solution washing Improving the stretchability Dyeing/colouring Glycol soaking Detergent solution washing ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermoplastic resins usually Permanent setting resins Remain hard as long as they are hot Can not be reclaimed from waste Less brittle than thermosetting resins Permanent setting resins Remain hard as long as they are hot Can not be reclaimed from waste Less brittle than thermosetting resins ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding Nitro cellulose Glycerol Camphor None of these Nitro cellulose Glycerol Camphor None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser? Esters of phthalic acid Stearic acid estors Ethylene glycol Tricresyl phosphate Esters of phthalic acid Stearic acid estors Ethylene glycol Tricresyl phosphate ANSWER DOWNLOAD EXAMIANS APP
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