Polymer Technology Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex? Both A & B Neither A nor B Ammonium alum Potassium alum Both A & B Neither A nor B Ammonium alum Potassium alum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is a natural polyamide fibre. None of these Wool Cotton Silk None of these Wool Cotton Silk ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer? PTFE Buna-S Polycaprolactum PMMA PTFE Buna-S Polycaprolactum PMMA ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its All of these Chemical resistance Tensile strength Flexibility All of these Chemical resistance Tensile strength Flexibility ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Butyl rubber Silicon rubber Nitrile rubber Silicone rubber Butyl rubber Silicon rubber Nitrile rubber Silicone rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polystyrene is a __________ plastic at room temperature. Malleable Ductile None of these Brittle Malleable Ductile None of these Brittle ANSWER DOWNLOAD EXAMIANS APP
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