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Chemical Engineering · all questions

Furnace Technology
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155

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Forced recirculation of furnace gases is practised

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The amount of combustible escaping uncon-sumed from the furnace, depends upon the

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Power required in case of forced draught as compared to induced draught (for the same draught produced) is

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Which is the most thermally efficient furnace?

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In a heating process, a heat flow diagram in which the quantities of heat in the various items of a heat balance are represented by the width of a band is called the

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An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace.

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Which of the following variables affects the furnace capacity?

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Air filtration in a furnace

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In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of

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If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace.

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Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent.

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Hearth furnaces are not used for

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The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent.

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The heating capacity of continuous reheating furnace depends upon the

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Means for giving direction to the circulation of gases in furnaces are

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If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.

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Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of

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Protective gas used in the annealing furnace for steel coil comprises of

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__________ furnace is not an electric furnace.

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In reverberatory furnace, charge is heated mainly by

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