Polymer Technology __________ polythene is most prone to stress-cracking Linear low density Cross-linked Low density High density Linear low density Cross-linked Low density High density ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Non sulphonated hard bakelites are not used for making Fountain pen barrels Ion-exchange resins Combs Formica table tops Fountain pen barrels Ion-exchange resins Combs Formica table tops ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher Hardness, rigidity & brittleness Densities Tensile strength Melting point Hardness, rigidity & brittleness Densities Tensile strength Melting point ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser? Stearic acid estors Ethylene glycol Tricresyl phosphate Esters of phthalic acid Stearic acid estors Ethylene glycol Tricresyl phosphate Esters of phthalic acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Tyres are made by Injection moulding Compression moulding Rotational moulding Extrusion Injection moulding Compression moulding Rotational moulding Extrusion ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of stabiliser during PVC manufacture is done to Improve its elasticity Reduce the melt viscosity & glass transition temperature Improve its impact strength Prevent its thermal degradation Improve its elasticity Reduce the melt viscosity & glass transition temperature Improve its impact strength Prevent its thermal degradation ANSWER DOWNLOAD EXAMIANS APP
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