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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

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  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).

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

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

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  7. Polycaprolactum is also known as

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

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  9. __________ scrap can be recycled & reutilised.

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

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  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

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  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

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  15. Bakelite is a/an

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

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  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.

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  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.

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