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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. Cement Kiln is a

    2. A.
    rotary Kiln
    B.
    tunnel Kiln
    C.
    natural draft furnace
    D.
    batch furnace

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  2. In a furnace employing forced draught as compared to induced draught,

    3. A.
    air is sucked in, so air leaks are more and hence the furnace efficiency is reduced.
    B.
    the fan operates hot and hence blades are liable to corrosion and erosion.
    C.
    positive pressure exists in the furnace.
    D.
    none of these

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  3. Regenerators are installed in

    4. A.
    coke ovens
    B.
    open hearth furnace
    C.
    both (a) & (b)
    D.
    neither (a) nor (b)

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  4. Which of the following is a heat treatment furnace ?

    5. A.
    Muffle furnace
    B.
    Annealing furnace
    C.
    Reheating furnace
    D.
    Rotary kiln

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  5. __________ atmosphere is maintained inside an iron blast furnace.

    6. A.
    Oxidising
    B.
    Reducing
    C.
    Inert
    D.
    Decarburising

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  6. Example of an indirectly heated furnace is

    7. A.
    hood annealing furnace
    B.
    muffle furnace
    C.
    both (a) and (b)
    D.
    neither (a) nor (b)

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  7. Which furnace employs preheating, heating and soaking zones ?

    8. A.
    Soaking pit
    B.
    Reheating furnace
    C.
    Open hearth furnace
    D.
    Cupola

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  8. Calcination of limestone to produce lime is done in a __________ kiln.

    9. A.
    tunnel
    B.
    rotary
    C.
    vertical shaft
    D.
    both (b) and (c)

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  9. Thickness of stock does not affect the fuel economy of furnaces, if the material to be heated is of

    10. A.
    low emissivity
    B.
    high thermal conductivity
    C.
    both (a) and (b)
    D.
    neither (a) nor (b)

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  10. Ceramic recuperators compared to metallic recuperators for the same duty

    11. A.
    are lighter.
    B.
    occupy more space.
    C.
    are less costly.
    D.
    have higher pressure differential between flue gas & air side.

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