Polymer Technology Styrene butadiene rubber (SBR) is never used for making Front wheel tyres of aeroplanes (i.e., heavy duty tyres) Coated fabrics Gaskets Soles of shoes Front wheel tyres of aeroplanes (i.e., heavy duty tyres) Coated fabrics Gaskets Soles of shoes ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Visco-elastic behaviour exhibited by plastics is a __________ like behaviour. Liquid Solid Neither solid nor liquid Combination of solid & liquid Liquid Solid Neither solid nor liquid Combination of solid & liquid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Size range of polymer molecules varies from __________ metre. 10⁻¹ to 10⁻² 10⁻⁸ to 10⁻¹⁰ 10⁻⁴ to 10⁻⁷ 10⁻² to 10⁻⁵ 10⁻¹ to 10⁻² 10⁻⁸ to 10⁻¹⁰ 10⁻⁴ to 10⁻⁷ 10⁻² to 10⁻⁵ ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are 250°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² 250°C and 10 kgf/cm² 50°C and 1 kgf/cm² 250°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² 250°C and 10 kgf/cm² 50°C and 1 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ? Cellulose acetate Water impermeable cellophane Teflon Polythene Cellulose acetate Water impermeable cellophane Teflon Polythene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The rate controlling step in the manufacture of silicone rubber is the Condensation of siloxane to silicone Polymer termination step Initial hydrolysis of silicone monomer None of these Condensation of siloxane to silicone Polymer termination step Initial hydrolysis of silicone monomer None of these ANSWER DOWNLOAD EXAMIANS APP
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