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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. The increase in hardness of metal due to its cold working is termed as the __________ hardening.

    2. A.
    work
    B.
    age
    C.
    induction
    D.
    flame

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  2. Copper is dissolved from its ore by H2SO4 in a percolation tank made of

    3. A.
    wood
    B.
    stainless steel
    C.
    reinforced concrete lined with lead
    D.
    high silicon iron (14% Si)

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  3. Bearings subjected to light load are made of

    4. A.
    white metal
    B.
    phosphorous bronze
    C.
    monel
    D.
    silicon bronze

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  4. Softening of hardned steel is done by its

    5. A.
    normalising
    B.
    tempering
    C.
    annealing
    D.
    carburising

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  5. Maximum permissible sulphur content in steel is __________ percent.

    6. A.
    0.015
    B.
    0.055
    C.
    0.505
    D.
    0.805

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  6. Ceramic materials fabrication can not be done by

    7. A.
    welding
    B.
    slip casting
    C.
    extrusion
    D.
    plastic pressing

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  7. Which has the maximum melting point out of the following ?

    8. A.
    Steel
    B.
    Cast iron
    C.
    Stainless steel
    D.
    Wrought iron

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  8. Cast iron is

    9. A.
    used for making shock resisting parts.
    B.
    manufactured in cupola and is brittle.
    C.
    having compressive strength more than its tensile strength.
    D.
    all (a), (b) & (c)

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  9. Which of the following has no effect on the carbide forming tendency in steels ?

    10. A.
    Molybdenum
    B.
    Phosphorus
    C.
    Chromium
    D.
    Vanadium

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  10. Approximate value of the modulus of elasticity for steel is about __________ x l06kg/cm2.

    11. A.
    0.5
    B.
    2
    C.
    40
    D.
    75

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