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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. Which of the following is the lowest cost plastic commercially available ?

    2. A.
    Polythene
    B.
    Teflon
    C.
    Bakelite
    D.
    PVC

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  2. Thermosetting plastic materials

    3. A.
    can be repeatedly melted.
    B.
    is useful for melt casting.
    C.
    can not be melted after forming.
    D.
    is useful for spinning.

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  3. Terylene is a/an

    4. A.
    addition polymer
    B.
    poly amide
    C.
    homopolymer
    D.
    none of these

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  4. Rayon is a __________ fibre.

    5. A.
    cellulosic
    B.
    polyamide
    C.
    polyester
    D.
    natural

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  5. Commercial production of polypropylene employs __________ polymerisation.

    6. A.
    emulsion
    B.
    suspension
    C.
    solution
    D.
    bulk

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  6. Bakelite (phenol-formaldehyde) resin can not be used as

    7. A.
    decorative paint.
    B.
    decorative laminates.
    C.
    electrical insulation.
    D.
    glass reinforced plastics.

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  7. Adipic acid is an intermediate in the manufacture of

    8. A.
    perspex
    B.
    nylon-66
    C.
    polystyrene
    D.
    bakelite

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  8. Softening point of high density polythene is about __________ °C.

    9. A.
    85
    B.
    135
    C.
    165
    D.
    205

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  9. Polymerisation of poly functional monomers produces polymers having

    10. A.
    good machanical strength
    B.
    low viscosity
    C.
    low melting point
    D.
    none of these

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  10. Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature.

    11. A.
    nylon
    B.
    polyacrylonitrile
    C.
    polypropylene
    D.
    polyester

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