Polymer Technology Thermosetting polymers as compared to thermoplastic polymers None of these Have linear structure Have three dimensional structure Are formed by addition polymerisation None of these Have linear structure Have three dimensional structure Are formed by addition polymerisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vulcanisation of rubber does not increase its Weight & strength Elasticity & water solubility Softness Oxidation resistance Weight & strength Elasticity & water solubility Softness Oxidation resistance 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 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. Sulphuric acid Organic peroxides Hydroflouric acid None of these Sulphuric acid Organic peroxides Hydroflouric acid None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Flexible foam (for mattresses) are usually made of Polyurethanes Polyamides Silicone rubber PVC Polyurethanes Polyamides Silicone rubber PVC ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is produced by polymerisation of chloroprene. Neoprene Butyl rubber Thiokol (a polysulphide rubber) Polyurathane rubber Neoprene Butyl rubber Thiokol (a polysulphide rubber) Polyurathane rubber ANSWER DOWNLOAD EXAMIANS APP
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