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Chemical Engineering :: Polymer Technology

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

  1. Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten

    2. A.
    saturated polyester
    B.
    polyurathane
    C.
    polystyrene
    D.
    either (b) or (c)

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  2. Styrene butadiene rubber (SBR) is

    3. A.
    a natural rubber.
    B.
    another name of silicone rubber.
    C.
    a synthetic polymer.
    D.
    a synthetic monomer.

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  3. Polycaprolactum is

    4. A.
    nylon-6
    B.
    nylon-66
    C.
    dacron
    D.
    rayon

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  4. Dacron is a

    5. A.
    condensation polymerisation product of hexamethylene diamine and adipic acid.
    B.
    condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol.
    C.
    thermosetting material.
    D.
    none of these.

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  5. Polymethyl methacrylate (PMMA) which is also known as perspex and is produced by bulk polymerisation of methyl methacrylate is not a __________ polymer.

    6. A.
    thermoplastic
    B.
    thermosetting
    C.
    linear
    D.
    glass like transparent

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  6. __________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.

    7. A.
    Percent elongation
    B.
    Resilience
    C.
    Freezing point
    D.
    Strength

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  7. Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten

    8. A.
    teflon
    B.
    bakelite
    C.
    SBR
    D.
    PVC

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  8. The starting material used for the manufacture of caprolactum is

    9. A.
    ethyl benzene
    B.
    cyclohexane
    C.
    ethylene glycol
    D.
    DMT

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  9. Nylon 6, 10 which is used for bristles making is superior to nylon 6, 6 due to its lower water absorption capacity, is a/an

    10. A.
    polyester
    B.
    polyamide
    C.
    polyisoprene
    D.
    polystyrene

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  10. Styrene which is a monomer for the production of polystyrene, is commercially produced by the

    11. A.
    catalytic dehydrogenation of ethyl benzene.
    B.
    dehydration of ethyl alcohol followed by hydrogenation.
    C.
    reacting ethylene oxide with acetal-dehyde.
    D.
    fermentation of starch.

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