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Chemical Engineering :: Materials and Construction

  1. 18/8 steel is a/an __________ stainless steel.

  2. A.
    austenitic
    B.
    ferritic
    C.
    martensitic
    D.
    none of these

  3. Cast iron has very high

  4. A.
    compressive strength
    B.
    ductility
    C.
    shock resistance
    D.
    resistance to brittleness

  5. Liquid ammonia is shipped in __________ containers.

  6. A.
    steel
    B.
    aluminium
    C.
    glass
    D.
    lead lined

  7. Cermets are __________ materials.

  8. A.
    refractory
    B.
    reinforced
    C.
    abrasive
    D.
    fully metallic

  9. Cast irons are generally specified by their

  10. A.
    carbon content
    B.
    tensile strength
    C.
    hardness
    D.
    manufacturing proces

  11. Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese.

  12. A.
    1.5-2
    B.
    3.5-4.5
    C.
    7-9
    D.
    12-14

  13. White cast iron is not

  14. A.
    malleable
    B.
    whitish in color
    C.
    brittle
    D.
    strong and hard

  15. Galvanised iron is

  16. A.
    harder
    B.
    protected from rusting
    C.
    alumina coated iron
    D.
    none of these

  17. German silver used for decorative purposes contains maximum percentage of

  18. A.
    silver
    B.
    copper
    C.
    zinc
    D.
    nickel

  19. The metals occuring at the lower most position in the electromotive series

  20. A.
    do not resist corrosion.
    B.
    resist corrosion very strongly.
    C.
    are very brittle.
    D.
    are heat insulators.