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 Tensile strength Melting point Hardness, rigidity & brittleness Densities Tensile strength Melting point Hardness, rigidity & brittleness Densities ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process of polythene manufacture Achieves an yield of 95-98% based on ethylene Employs a pressure of 30 kgf/cm² Produces very low density polythene Does not use any catalyst for polymerisation Achieves an yield of 95-98% based on ethylene Employs a pressure of 30 kgf/cm² Produces very low density polythene Does not use any catalyst for polymerisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres. Acrylic Polyester Nylon 6:6 Polypropylene Acrylic Polyester Nylon 6:6 Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polymer is used for making unbreakable crockery. Melamine Thermoplastic None of these Addition Melamine Thermoplastic None of these Addition ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polystyrene is a light, transparent, thermoplastic material used for making Toys and combs Non-sticking utensils Packaging bags Electrical insulation Toys and combs Non-sticking utensils Packaging bags Electrical insulation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Dacron is a None of these Condensation polymerisation product of hexamethylene diamine and adipic acid Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol Thermosetting material None of these Condensation polymerisation product of hexamethylene diamine and adipic acid Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol Thermosetting material ANSWER DOWNLOAD EXAMIANS APP
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