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Furnace Technology

Furnace Technology
__________ furnace is not an electric furnace.

Pot
Induction
Resistance
Arc

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Furnace Technology
A refractory wall separating the stock and the source of heat is provided in a

Updraft kiln
Muffle furnace
Continuous furnace
None of these

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Furnace Technology
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

Blast furnace gas with oxygen
Furnace oil with oxygen
Furnace oil with air
Blast furnace gas with air

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Furnace Technology
The main function of a muffle in the muffle furnace is to

Neither A nor B
Protect the charge from the effects of the products of combustion
Both A & B
Smooth out temperature inequalities on the combustion side of the muffle wall

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Furnace Technology
An example of indirectly heated furnace is the

Reheating furnace
Soaking pit
Muffle furnace
None of these

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

40
65
20
80

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