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Chemical Engineering :: Materials and Construction

  1. Carbon percentage is the same in cast iron and

  2. A.
    wrought iron
    B.
    pig iron
    C.
    mild steel
    D.
    high silicon (14%) iron

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  3. Pick out the wrong statement.

  4. A.
    Bronze is an alloy of copper & tin.
    B.
    Brass is an alloy of copper & zinc.
    C.
    The alloy named 'German silver' does not contain any silver.
    D.
    The ability of a material to fracture without appreciable deformation is called its ductility.

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  5. Which of the following has the highest density and the lowest melting point ?

  6. A.
    Stainless steel
    B.
    Titanium
    C.
    Lead
    D.
    Aluminium

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  7. In order to be called steel, an alloy should have iron percentage greater than

  8. A.
    80
    B.
    70
    C.
    90
    D.
    50

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  9. Nickel is a constituent of

  10. A.
    bronze
    B.
    solder
    C.
    duralumin
    D.
    monel metal

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  11. Soap kettle used in the production of laundry soap is made of

  12. A.
    steel with top section nickel clad or stainless steel
    B.
    cast iron
    C.
    nickel
    D.
    concrete

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  13. Nickel made/clad equipments are suitable for handling

  14. A.
    ammonia (both aqueous & anhydrous).
    B.
    fruit juices, milk & its products and caustic soda solution.
    C.
    nitric acid & hydrochloric acid (conc).
    D.
    sulphuric acid (conc).

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  15. Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of

  16. A.
    nickel
    B.
    copper
    C.
    stainless steel
    D.
    brass

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  17. In hot wire aneomometer used for gas flow measurement, the wire is normally made of

  18. A.
    copper
    B.
    platinum
    C.
    constantan
    D.
    chromium

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  19. The heat treatment process to which castings and the steel balls produced by cold heading are subjected is

  20. A.
    tempering
    B.
    normalising
    C.
    annealing
    D.
    none of these

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