Polymer Technology Bristles of tooth brushes are made of PVC Polystyrene Nylon-6 Nylon-66 PVC Polystyrene Nylon-6 Nylon-66 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process of polythene manufacture Does not use any catalyst for polymerisation Produces very low density polythene Employs a pressure of 30 kgf/cm² Achieves an yield of 95-98% based on ethylene Does not use any catalyst for polymerisation Produces very low density polythene Employs a pressure of 30 kgf/cm² Achieves an yield of 95-98% based on ethylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a condensation polymer? Bakelite Polymethylmethacrylate (PMMA) None of these Melamine polymer Bakelite Polymethylmethacrylate (PMMA) None of these Melamine polymer 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 Nylon 6:6 Polyester Polypropylene Acrylic Nylon 6:6 Polyester Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids? Starch Proteins Cellulose Nucleic acids Starch Proteins Cellulose Nucleic acids ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Poly Vinyl chloride (PVC) is a __________ material. Fibrous Thermosetting Chemically active Thermoplastic Fibrous Thermosetting Chemically active Thermoplastic ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS