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Furnace Technology

Furnace Technology
Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent.

20
40
65
80

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Furnace Technology
The rate of scaling of furnace stock depends upon the

All of these
Nature of atmosphere
Temperature
Time

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Furnace Technology
Which is not a hearth furnace?

Glass tank furnace
Cupola
Open hearth furnace
Reheating furnace

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Furnace Technology
Which of the following is not a continuous waste heat recovery equipment from the flue gases going out of furnace?

Ceramic recuperator
Regenerator
Economiser
Waste heat boiler

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

Underfired
Covered
Sidefired
Recirculating

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Furnace Technology
Regenerators are installed in

Both A & B
Neither A nor B
Coke ovens
Open hearth furnace

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