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  • Question
  • Fuel used in B.F. stove is


  • Options
  • A. pulverised coal
  • B. furnace oil
  • C. blast furnace gas/mixed gas
  • D. coke oven gas

  • Correct Answer
  • blast furnace gas/mixed gas 


  • Furnace Technology problems


    Search Results


    • 1. In order to maintain a reducing atmosphere in a furnace, it should have

    • Options
    • A. no O2 in flue gas
    • B. CO in flue gas
    • C. high excess air
    • D. none of these
    • Discuss
    • 2. The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent.

    • Options
    • A. 50
    • B. 65
    • C. 85
    • D. 99
    • Discuss
    • 3. Ostwald charts are meant for

    • Options
    • A. computing the excess/deficiency of combustion air.
    • B. calculation of flue gas temperature.
    • C. computation of flue gas analysis.
    • D. none of these.
    • Discuss
    • 4. Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about __________ °C.

    • Options
    • A. 80
    • B. 130
    • C. 180
    • D. 250
    • Discuss
    • 5. Calcination of limestone to produce lime is done in a __________ kiln.

    • Options
    • A. tunnel
    • B. rotary
    • C. vertical shaft
    • D. both (b) and (c)
    • Discuss
    • 6. In reverberatory furnace, charge is heated mainly by

    • Options
    • A. conduction.
    • B. natural convection.
    • C. radiation of heat from the roof of the combustion chamber.
    • D. none of these.
    • Discuss
    • 7. An example of shaft furnace is the

    • Options
    • A. L.D. converter
    • B. glass melting tank
    • C. blast furnace
    • D. soaking pit
    • Discuss
    • 8. In a muffle furnace, the muffle

    • Options
    • A. retards the heat transfer.
    • B. assists in temperature equalisation in the charge.
    • C. permits the use of controlled atmosphere for the protection of stock.
    • D. all (a), (b) and (c).
    • Discuss
    • 9. __________ atmosphere is maintained inside an iron blast furnace.

    • Options
    • A. Oxidising
    • B. Reducing
    • C. Inert
    • D. Decarburising
    • Discuss
    • 10. Tunnel kilns are usually used for

    • Options
    • A. roasting of pyrites.
    • B. drying/tempering of refractories.
    • C. reheating of slabs.
    • D. melting of glass.
    • Discuss


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