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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

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

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

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

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

  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

  9. Plate and frame filter press is usually made of

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

  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

  13. Nickel and copper are the basic constituents of

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

  15. Copper has very low

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

  17. Hardest material so far found is

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

  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)