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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. Constantan used in thermocouples is an alloy of

    2. A.
    iron & copper
    B.
    copper & aluminium
    C.
    lead & tin
    D.
    none of these

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  2. A material is able to retain the deformation permanently by virtue of its

    3. A.
    elasticity
    B.
    plasticity
    C.
    ductility
    D.
    malleability

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  3. __________ steel is widely used for the manufacture of motor car crankshafts.

    4. A.
    Silicon
    B.
    Nickel
    C.
    Chrome
    D.
    High speed

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  4. Galvanising (i.e., zinc coating) of steel sheets is done to

    5. A.
    prevent its rusting by contact with corrosive atmosphere.
    B.
    protect the base metal by cathodic protection.
    C.
    both(a) & (b).
    D.
    neither (a) nor (b).

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  5. Which of the following is not a nickel based alloy ?

    6. A.
    Inconel
    B.
    Hastelloys
    C.
    Nimonics
    D.
    Babbit metal

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  6. Coke oven walls are lined with __________ bricks.

    7. A.
    silica
    B.
    tar-dolomite
    C.
    low thermal conductivity
    D.
    fire clay

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  7. Iron rust is

    8. A.
    ferrous oxide.
    B.
    hydrated ferric oxide.
    C.
    powdered iron.
    D.
    ferric sulphide.

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  8. Urea autoclave is made of

    9. A.
    cast iron
    B.
    refractory blocks
    C.
    stainless steel
    D.
    lead lined steel

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  9. Mild steel is

    10. A.
    a low carbon steel (0.05 to 0.3% carbon).
    B.
    highly resistant to corrosion (as much as stainless steel).
    C.
    a high carbon steel (0.5 to 1.5% carbon).
    D.
    very poor in strength & ductility.

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  10. Dilute sulphuric acid is transported in __________ pipes.

    11. A.
    mild steel
    B.
    lead
    C.
    copper
    D.
    special alloys

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