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