Polymer Technology Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber? Magnesium Carbon Thiokol Alkylated diphenyl amine Magnesium Carbon Thiokol Alkylated diphenyl amine ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber (SBR) is never used for making Coated fabrics Gaskets Front wheel tyres of aeroplanes (i.e., heavy duty tyres) Soles of shoes Coated fabrics Gaskets Front wheel tyres of aeroplanes (i.e., heavy duty tyres) Soles of shoes 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. Hydroflouric acid Organic peroxides None of these Sulphuric acid Hydroflouric acid Organic peroxides None of these Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon-66 compared to nylon-6 has Lower melting point Higher hardness All of these More abrasion resistant properties Lower melting point Higher hardness All of these More abrasion resistant properties ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber is commercially manufactured by Suspension polymerisation Emulsion polymerisation Solution polymerisation Bulk polymerisation Suspension polymerisation Emulsion polymerisation Solution polymerisation Bulk polymerisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Transistor parts and refrigerator components are normally made of Polyurathane Polystyrene Polyester High density polythene Polyurathane Polystyrene Polyester High density polythene ANSWER DOWNLOAD EXAMIANS APP
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