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Chemical Engineering :: Materials and Construction

Materials and Construction - Section 1
Materials and Construction - Section 2
Materials and Construction - Section 3
Materials and Construction - Section 4
Materials and Construction - Section 5
Materials and Construction - Section 6
Materials and Construction - Section 7
Materials and Construction - Section 8
Materials and Construction - Section 9
Materials and Construction - Section 10
Materials and Construction - Section 11

  1. Acid proof stoneware

    2. A.
    has very low strength.
    B.
    cannot be heated.
    C.
    is broken by small temperature changes.
    D.
    all (a), (b) and (c).

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  2. Diamagnetic materials are magnetised

    3. A.
    strongly.
    B.
    only slightly.
    C.
    with eddy currents only.
    D.
    in a direction opposite to that of the applied field.

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  3. High degree of toughness is a must for

    4. A.
    high speed steel
    B.
    shock resisting steel
    C.
    cold work tool steel
    D.
    none of these

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  4. 'Hypersil' is a __________ steel.

    5. A.
    high speed
    B.
    silicon
    C.
    molybdenum
    D.
    tungsten

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  5. __________ can replace tungsten in high speed steel,

    6. A.
    Chromium
    B.
    Vanadium
    C.
    Cobalt
    D.
    Molybdenum

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  6. Polythene (low or high density) containers are not corroded by

    7. A.
    sulphuric acid (10%) at room temperature.
    B.
    nitric acid (95%) at room temperature.
    C.
    sulphur trioxide at 60°C.
    D.
    any of these.

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  7. Bronze is an alloy of copper and

    8. A.
    lead
    B.
    tin
    C.
    nickel
    D.
    zinc

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  8. Which of the following exercises most powerful influence on the mechanical properties of steel ?

    9. A.
    Manganese
    B.
    Carbon
    C.
    Phosphorous
    D.
    Silicon

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  9. Balls in a ball mill are usually made of

    10. A.
    steel
    B.
    cast iron
    C.
    stainless steel
    D.
    bronze

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  10. DDT is shipped in

    11. A.
    stainless steel containers
    B.
    paper bags
    C.
    fibre drums
    D.
    either (b) or (c)

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