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Chemical Engineering :: Materials and Construction

  1. Carbon tetrachloride can be stored in a storage vessel made of

  2. A.
    high silicon iron (14% Si)
    B.
    tin
    C.
    stainless steel
    D.
    all (a), (b) and (c)

  3. The process of coating steel sheets by zinc to improve its corrosion resistance is called

  4. A.
    calorising
    B.
    galvanising
    C.
    zincification
    D.
    tempering

  5. __________ does not contain copper as an alloying element,

  6. A.
    Nichrome
    B.
    Manganin
    C.
    Perminivar
    D.
    Monel metal

  7. Reactor used in the production of polyvinyl chloride (PVC) is made of

  8. A.
    nickel or glass lined steel
    B.
    aluminium
    C.
    tantalum
    D.
    lead

  9. __________ is added in low carbon steel to raise its yield point.

  10. A.
    Sulphur
    B.
    Phosphorous
    C.
    Silicon
    D.
    Manganese

  11. __________ iron is produced, when molten pig iron is allowed to cool gradually.

  12. A.
    White cast
    B.
    Grey cast
    C.
    Wrought
    D.
    none of these

  13. Cast iron vessels are not suitable for the storage of

  14. A.
    freon
    B.
    H2SO4 (95%) at room temperature
    C.
    H2SO4 (fuming)
    D.
    wet SO2

  15. Condenser tubes are not made of

  16. A.
    cartridge brass
    B.
    muntz brass
    C.
    wood metal
    D.
    aluminium brass alloy

  17. Tin in its pure form is used for making

  18. A.
    cans for food packing.
    B.
    collapsible tubes for toilet preparations.
    C.
    foil for wrapping cheese.
    D.
    all (a), (b) and (c).

  19. Addition of __________ in steel is helpful in increasing the depth of hardness.

  20. A.
    chromium
    B.
    sulphur
    C.
    vanadium
    D.
    tungsten