Polymer Technology Molecular weight of polymers are in the range of 10 to 10³ 10⁹-10¹¹ 10²-10⁷ 10⁷-10⁹ 10 to 10³ 10⁹-10¹¹ 10²-10⁷ 10⁷-10⁹ ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate. Leathery Fibrous Hard Rubbery Leathery Fibrous Hard Rubbery ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vulcanisation of rubber does not increase its Oxidation resistance Weight & strength Elasticity & water solubility Softness Oxidation resistance Weight & strength Elasticity & water solubility 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 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 Which of the following polymers has the tendency of decomposing before melting? PVC Polystyrene None of these Nylon PVC Polystyrene None of these Nylon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Does not vary with temperature rise Decreases with increase in molecular weight Increases with increase in temperature Decreases with increase in temperature Does not vary with temperature rise Decreases with increase in molecular weight Increases with increase in temperature Decreases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
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