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Chemical Engineering :: Polymer Technology

  1. Benzoyl chloride is not used as a catalyst in the manufacture of

  2. A.
    polystyrene
    B.
    polyvinyl acetate
    C.
    polypropylene
    D.
    polyvinyl chloride-co-vinylacetate

  3. Epoxy resin is a polymer containing two or more groups called epoxide group or ethoxyline group. It is a

  4. A.
    polyamide & an elastomer.
    B.
    good adhesive.
    C.
    surface coating agent.
    D.
    both (b) and (c).

  5. The conversion of caprolactum in the above case is about __________ percent.

  6. A.
    25
    B.
    50
    C.
    70
    D.
    90

  7. Polycaprolactum is also known as

  8. A.
    nylon-66
    B.
    nylon-6
    C.
    teflon
    D.
    SBR

  9. __________ scrap can be recycled & reutilised.

  10. A.
    Bakelite
    B.
    Epoxy resin
    C.
    Polythene
    D.
    none of these

  11. All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it can not be used for the production of plastic

  12. A.
    filaments
    B.
    pipes
    C.
    buckets
    D.
    tubings

  13. Polymerisation product of C2F4 (carbon tetraflouride) is called P.T.F.E. (poly chloro tetra flouro ethylene). It is also called

  14. A.
    polyurethane
    B.
    silicone rubber
    C.
    teflon
    D.
    epoxy resin

  15. Bakelite is a/an

  16. A.
    addition polymer
    B.
    elastomer
    C.
    thermoplastic
    D.
    none of these

  17. Polyvinyl alcohol is used as a

  18. A.
    cation/anion exchanger.
    B.
    water soluble adhesive.
    C.
    textile fibre.
    D.
    non-sticky coating on frying pans.

  19. Epoxy resins (i.e., epoxide polymers)

  20. A.
    are made by addition polymerisation reaction only.
    B.
    contain an epoxy group ( ) at the ends of the polymer.
    C.
    are cross-linked polymers only.
    D.
    use emulsion polymerisation methods.