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Furnace Technology

Furnace Technology
Cement Kiln is a

Batch furnace
Natural draft furnace
Rotary Kiln
Tunnel Kiln

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Furnace Technology
Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an

All of these
Steam superheater
Air preheater
Economiser

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

99
85
50
65

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Furnace Technology
Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the

Amount of excess air supplied and load on the boiler
Physical nature, ash content and fineness of the coal
All of these
Type of burner and combustion chamber

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Furnace Technology
Regenerators are used for waste heat recovery in

Blast furnace stoves
Beehive coke oven
By-product coke ovens
Soaking pits

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Furnace Technology
Low stack loss indicates the

Oxygen enrichment of combustion air
Efficient use of fuel
Use of sub-stoichiometric air for combustion
Inefficient use of fuel

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