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Chemical Engineering :: Polymer Technology

  1. Nylon-6 is a

  2. A.
    polyamide
    B.
    thermosetting resin
    C.
    polyester
    D.
    none of these

  3. Rain coats are made of

  4. A.
    neoprene
    B.
    PVC
    C.
    polyurathane
    D.
    SBR

  5. Condensation polymerisation of __________ produces bakelite.

  6. A.
    propylene
    B.
    phenol & formaldehyde
    C.
    phenol & acetaldehyde
    D.
    urea & formaldehyde

  7. __________ is not a condensation polymer.

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

  9. Nylon-66 is a polyamide of

  10. A.
    hexamethylene diamine and adipic acid.
    B.
    adipic acid and methyl amine.
    C.
    vinyl chloride and formaldeyde.
    D.
    none of these.

  11. Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their

  12. A.
    molecular sizes.
    B.
    magnitude of intermolecular forces.
    C.
    resistance to heat.
    D.
    polymerisation mechanism.

  13. Which of the following is not a natural fibre?

  14. A.
    Silk
    B.
    Viscose rayon
    C.
    Wool
    D.
    Cotton

  15. Polyurathane can not be used to make

  16. A.
    automobile cushion
    B.
    thermal insulation in refrigerator
    C.
    coating and adhesive
    D.
    fibre reinforced plastic (FRP)

  17. Terylene is

  18. A.
    same as dacron
    B.
    a polyester
    C.
    both(a) & (b)
    D.
    neither (a) nor (b)

  19. Cross linked polymers formed from bi-and trifuctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties.

  20. A.
    thermoplastic
    B.
    thermosetting
    C.
    elastometric
    D.
    brittleness