Polymer Technology The physical state in which polymers exist is Partially crystalline state All of these Melts & rubber like state Amorphous glassy state Partially crystalline state All of these Melts & rubber like state Amorphous glassy state ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polymer is used for making unbreakable crockery. Thermoplastic Addition None of these Melamine Thermoplastic Addition None of these Melamine ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural polymer? Polysaccharides Polyurethane Polyisoprene Nucleic acids e.g. RNA and DNA Polysaccharides Polyurethane Polyisoprene Nucleic acids e.g. RNA and DNA ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent. 2000-2500 1-1000 1500-2000 1000-1500 2000-2500 1-1000 1500-2000 1000-1500 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is 1 kgf/cm² (gage) and 70°C 1000 kgf/cm² and 100°C 7 kgf/cm² and 70 °C 7 kgf/cm² and 700°C 1 kgf/cm² (gage) and 70°C 1000 kgf/cm² and 100°C 7 kgf/cm² and 70 °C 7 kgf/cm² and 700°C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods ANSWER DOWNLOAD EXAMIANS APP
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