Viscosity of a polymer solution or melt _________________?

Related Mcqs:

1. Melt spinning of polymers involves the forcing of polymer melt through spinnerates (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?

   A. Acrylic B. Polyester C. Nylon 6:6 D. Polypropylene...

2. In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for _______________ fibres?

   A. Polythene B. PVC C. Rayon D. Polyvinyl acetate...

3. In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer ?

   A. Bakelite (phenol formaldehyde) B. Polyester C. Polythene D. Nylon-6...

4. In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the _____________ fibres?

   A. Viscose rayon B. Acrylic C. Polyvinyl acetate D. Saturated polyester...

5. Synthetic polymer produced by using terephthalic acid and ethylene glycol is _________________?

   A. Terylene B. Nylon-66 C. PVC D. Polystyrene...

6. Which of the following is an inorganic polymer ?

   A. Teflon B. Perspex C. Silicones D. Bakelite...

7. ____________ polymer is used for making unbreakable crockery?

   A. Thermoplastic B. Melamine C. Addition D. None of these...

8. Glyptal used in the manufacture of paints & lacquers is a _____________ polymer?

   A. Polyamide B. Polystyrene C. Polyester D. Polyacrylonitrile...

9. _______________________ is not a condensation polymer ?

   A. Teflon B. Nylon-66 C. Dacron D. Polystyrene...

10. Which of the following is not a polymer of two monomers ?

    A. Teflon B. Bakelite C. SBR D. None of these...