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Furnace Technology

Furnace Technology
Hearth furnaces are not used for

Roasting
Melting
Reheating
None of these

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Furnace Technology
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

Sankey diagram
Cox chart
None of these
Ostwald chart

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Furnace Technology
Which furnace employs natural draft?

Coke oven
Rotary kilns
Boiler
L.D. converter

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Furnace Technology
While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C.

6000
4500
3000
2000

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Furnace Technology
Large tonnage of refractory bricks are dried in a

Tunnel kiln
Rotary hearth furnace
Shaft furnace
Muffle furnace

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Furnace Technology
Which of the following is not a directly fired furnace?

Sintering furnace
Open hearth furnace
By-product coke oven
Calcination kiln

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