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Chemical Engineering :: Polymer Technology

Polymer Technology - Section 1
Polymer Technology - Section 2
Polymer Technology - Section 3
Polymer Technology - Section 4
Polymer Technology - Section 5
Polymer Technology - Section 6

  1. The main use of butadiene is

    2. A.
    as a plasticiser for unsaturated polyester.
    B.
    in the manufacture of synthetic rubber.
    C.
    as an anti-skimming agent in paint.
    D.
    none of these.

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  2. Mastication of rubber means

    3. A.
    its softening.
    B.
    a treatment to retard its deterioration due to oxidation.
    C.
    improving its curing rate.
    D.
    depression of its freezing point.

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  3. Polymethyl methacrylate (PMMA) is known as

    4. A.
    bakelite
    B.
    teflon
    C.
    perspex
    D.
    nylon-6

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  4. Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces

    5. A.
    nylon-6
    B.
    dacron
    C.
    polyester
    D.
    PVC

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  5. Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene.

    6. A.
    nitrile
    B.
    silicone
    C.
    neoprene
    D.
    butyl

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  6. Density of high density polythene is about __________ gm/c.c.

    7. A.
    1.18
    B.
    1.05
    C.
    0.95
    D.
    0.99

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  7. Vinyl flooring is done using __________ sheets.

    8. A.
    polypropylene
    B.
    PVC
    C.
    polythene
    D.
    polyvinyl acetate

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  8. Thiokol is nothing but

    9. A.
    polysulphide rubber
    B.
    polyamide fibre
    C.
    engineering plastic
    D.
    exponded polystyrene

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  9. Transistor parts and refrigerator components are normally made of

    10. A.
    polystyrene
    B.
    polyester
    C.
    high density polythene
    D.
    polyurathane

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  10. Dacron (or terylene) fibres as compared to nylon fibres have

    11. A.
    better heat & acid resistant properties.
    B.
    poorer resistance to alkalis.
    C.
    poorer dyeability.
    D.
    all (a), (b) and (c).

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