Polymer Technology Vinyl flooring is done using __________ sheets. Polythene PVC Polypropylene Polyvinyl acetate Polythene PVC Polypropylene Polyvinyl acetate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Zeigler - Natta catalyst (AlR₃ - AlCl₃) is used in the polymerisation of Vinyl acetate Vinyl chloride Styrene Propylene Vinyl acetate Vinyl chloride Styrene Propylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Diphenylamine is added to rubber to Protect it from deterioration on exposure to air Valcanise it Make it non-inflammable Make it thermosetting Protect it from deterioration on exposure to air Valcanise it Make it non-inflammable Make it thermosetting 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 None of these Organic peroxides Sulphuric acid Hydroflouric acid None of these Organic peroxides Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vulcanisation of rubber does not increase its Oxidation resistance Elasticity & water solubility Weight & strength Softness Oxidation resistance Elasticity & water solubility Weight & strength Softness ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are 250°C and 10 kgf/cm² 50°C and 3 - 4 kg/cm² 50°C and 1 kgf/cm² 250°C and 1 kgf/cm² 250°C and 10 kgf/cm² 50°C and 3 - 4 kg/cm² 50°C and 1 kgf/cm² 250°C and 1 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
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