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Furnace Technology

Furnace Technology
__________ furnace is not an electric furnace.

Resistance
Induction
Arc
Pot

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Furnace Technology
Reverberatory furnace is used for

Steel melting
Heating air
Roasting/reduction of ores
Annealing steel coil

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Furnace Technology
The heating capacity of continuous reheating furnace depends upon the

Hearth area and furnace temperature
All of these
Emissivity of the stock
Ratio of wall surface to stock surface

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Furnace Technology
Very high pressure boilers are usually __________ boilers.

Natural circulation
Fire tube
Water tube
Waste heat

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Furnace Technology
Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.

1250
750
1050
350

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Furnace Technology
Neutral atmosphere is maintained in a/an __________ furnace.

Cold rolled steel coil annealing
Walking beam reheating
Open hearth
Soaking pit

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