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Chemical Engineering :: Chemical Engineering Basics

  1. Wave length of X-rays is about 1 angstron, however it can not pass through a sheet of

  2. A.
    paper
    B.
    cloth
    C.
    lead
    D.
    aluminium

  3. Alloying elements present in Hayness stel-lite, which has superior performance than high speed steel, are

  4. A.
    nickel, cobalt & chromium.
    B.
    tungsten, chromium & cobalt.
    C.
    manganese, chromium & cobalt.
    D.
    tungsten, molybdenum & nickel.

  5. The minimum and the maximum number of members required to form a Private Limited Joint Stock Company are respectively

  6. A.
    7 and 30
    B.
    10 and 50
    C.
    2 and 50
    D.
    13 and 55

  7. The leaching solvent used in Baeyer's process for the purification of bauxite is

  8. A.
    ammonium hydroxide
    B.
    sodium carbonate
    C.
    sodium hydroxide
    D.
    ammonium carbonate

  9. Austempering process results in the formation of __________ structure.

  10. A.
    martensitic
    B.
    bainitic
    C.
    carburised
    D.
    stressed

  11. Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

  12. A.
    1.5
    B.
    3
    C.
    5
    D.
    7

  13. Basic open hearth furnace (BOF) is not used for producing __________ steel.

  14. A.
    killed
    B.
    rimming
    C.
    high alloy
    D.
    none of these

  15. Principal alloying element in Elinvar (used for making hair springs for watches) is

  16. A.
    copper
    B.
    aluminium
    C.
    nickel
    D.
    zinc

  17. The value of y = cp/cv. at < 500°C for air & most common gases can be safely assumed to be

  18. A.
    0.8
    B.
    1
    C.
    1.4
    D.
    1.8

  19. Tesla metre per ampere (T. m/A) is the unit for the measurement of

  20. A.
    magnetic succeptibility.
    B.
    magnetic moment.
    C.
    permeability of free space.
    D.
    flux density.