Polymer Technology Polymerisation process in which two or more monomers of chemically different nature take part is called Addition polymerisation None of these Chain polymerisation Copolymerisation Addition polymerisation None of these Chain polymerisation Copolymerisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plastic tubes & pipes are generally made by __________ moulding. Transfer Injection Extrusion Compression Transfer Injection Extrusion Compression ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process of polythene manufacture 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 Achieves an yield of 95-98% based on ethylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Automobile steering wheels are normally made of Cellulose acetate Cellulose nitrate High density polythene PVC Cellulose acetate Cellulose nitrate High density polythene PVC ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Softening temperature is 200°C Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction Softening temperature is 200°C Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon-66 compared to nylon-6 has Lower melting point Higher hardness All of these More abrasion resistant properties Lower melting point Higher hardness All of these More abrasion resistant properties ANSWER DOWNLOAD EXAMIANS APP
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