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Chemical Engineering :: Materials and Construction

  1. Mild steel is used for making

  2. A.
    fish plates
    B.
    die block
    C.
    channels
    D.
    drop forging

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  3. Presence of 0.3 to 0.5% arsenic in copper increases its

  4. A.
    ductility
    B.
    malleability
    C.
    tenacity & hardness
    D.
    electrical conductivity

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  5. The heat treatment process applied to cold formed steel parts is

  6. A.
    normalising
    B.
    tempering
    C.
    artificial ageing
    D.
    solution annealing

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  7. The largest consumption of zinc for alloys is in the making of

  8. A.
    bearing metal
    B.
    brasses
    C.
    brazing solder
    D.
    die casting alloys

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  9. Plate and frame filter press is usually made of

  10. A.
    mild steel
    B.
    cast iron
    C.
    stainless steel
    D.
    galvanised iron

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  11. Ammonium chloride solution is stored/ treated in __________ vessels/pipes.

  12. A.
    plain carbon steel
    B.
    stainless steel
    C.
    rubber or durmet-20 lined
    D.
    lead

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  13. Nickel and copper are the basic constituents of

  14. A.
    hastelloy
    B.
    monel metal
    C.
    German silver
    D.
    inconel

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  15. Copper has very low

  16. A.
    malleability
    B.
    ductility
    C.
    tensile strength
    D.
    thermal & electrical conductivity

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  17. Hardest material so far found is

  18. A.
    diamond
    B.
    graphite
    C.
    carborundum
    D.
    pumice stone

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  19. Most suitable material of construction for the storage of concentrated nitric acid is

  20. A.
    cast iron
    B.
    monel
    C.
    karbate
    D.
    aluminium or chromium alloys (Cr > 18% for cold acid)

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