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Chemical Engineering :: Furnace Technology

Furnace Technology - Section 1
Furnace Technology - Section 2
Furnace Technology - Section 3
Furnace Technology - Section 4

  1. The resistance furnace produces heat by the

    2. A.
    electric arc struck between electrodes and the charge.
    B.
    flow of current through a heating element.
    C.
    combination of induced current and skin effect.
    D.
    none of these

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  2. Which of the following variables does not affect the furnace capacity ?

    3. A.
    Size of the furnace.
    B.
    Gas velocity in furnace.
    C.
    Ratio of wall surface to surface of stock.
    D.
    None of these.

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  3. Unit of furnace loading is

    4. A.
    ton stock/hr/m2 hearth area
    B.
    ton stock/hr
    C.
    ton stock/m2 hearth area
    D.
    both (b) and (c)

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  4. In a furnace operation, which is not preheated ?

    5. A.
    Solid fuels.
    B.
    Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.).
    C.
    Both (a) and (b).
    D.
    Neither (a) nor (b).

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  5. Operation of blast furnace stove is based on the principles of a __________ furnace.

    6. A.
    regenerative
    B.
    recuperative
    C.
    both (a) and (b)
    D.
    neither (a) nor (b).

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  6. Which of the following is not a recuperative furnace ?

    7. A.
    Soaking pit
    B.
    Reheating furnace
    C.
    Steamboiler
    D.
    Coke oven.

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  7. Size of the combustion chamber of a furnace depends upon the

    8. A.
    heat release rate of the fuel.
    B.
    preheat temperature of fuel & air.
    C.
    method of mixing the fuel & air.
    D.
    all (a), (b) and (c).

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  8. Reheating furnace (pusher type) is used for heating

    9. A.
    ingots
    B.
    slabs
    C.
    steel coils
    D.
    steel sheets

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  9. The rate of scaling of furnace stock depends upon the

    10. A.
    temperature
    B.
    time
    C.
    nature of atmosphere
    D.
    all (a), (b) and (c)

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  10. Main gas valve in a gaseous fuel burner is a __________ valve.

    11. A.
    gate
    B.
    butterfly
    C.
    globe
    D.
    none of these

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