Polymer Technology Synthetic rubber Is softer at higher temperature Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is brittle at low temperature Deforms, if stretched to double of its original dimension Is softer at higher temperature Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is brittle at low temperature Deforms, if stretched to double of its original dimension ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Alkyd resin can not be used for making Fibres Film forming materials Plasticiser Paint & varnish Fibres Film forming materials Plasticiser Paint & varnish ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Main constituent of cotton fibre is Cellulose Gelatine Starch Lignin Cellulose Gelatine Starch Lignin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The rate controlling step in the manufacture of silicone rubber is the None of these Polymer termination step Initial hydrolysis of silicone monomer Condensation of siloxane to silicone None of these Polymer termination step Initial hydrolysis of silicone monomer Condensation of siloxane to silicone ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not an elastomer? Nitrile-butadiene None of these Polyisoprene Neoprene Nitrile-butadiene None of these Polyisoprene Neoprene 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 1000-1500 1500-2000 1-1000 2000-2500 1000-1500 1500-2000 ANSWER DOWNLOAD EXAMIANS APP
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