Polymer Technology Synthetic rubber Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Deforms, if stretched to double of its original dimension Is brittle at low temperature Is softer at higher temperature Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Deforms, if stretched to double of its original dimension Is brittle at low temperature Is softer at higher temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A copolymer of vinyl and vinylidine chloride is called Dacron Saran Treylene Orlon Dacron Saran Treylene Orlon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Contact lenses for eyes are made of perspex, which is nothing but Polymethylmethacrylate Unsaturated polyester Polystyrene Polypropylene Polymethylmethacrylate Unsaturated polyester Polystyrene Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Size range of polymer molecules varies from __________ metre. 10⁻⁴ to 10⁻⁷ 10⁻⁸ to 10⁻¹⁰ 10⁻¹ to 10⁻² 10⁻² to 10⁻⁵ 10⁻⁴ to 10⁻⁷ 10⁻⁸ to 10⁻¹⁰ 10⁻¹ to 10⁻² 10⁻² to 10⁻⁵ ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Decreases with increase in molecular weight Increases with increase in temperature Does not vary with temperature rise Decreases with increase in temperature Decreases with increase in molecular weight Increases with increase in temperature Does not vary with temperature rise Decreases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural fibre? Cotton Wool Viscose rayon Silk Cotton Wool Viscose rayon Silk ANSWER DOWNLOAD EXAMIANS APP
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