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Furnace Technology

Furnace Technology
Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about __________ °C.

130
250
80
180

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

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

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Furnace Technology
An example of indirectly heated furnace is the

Reheating furnace
None of these
Soaking pit
Muffle furnace

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Furnace Technology
The method of Lobo and Evans is concerned with the calculation of the

Heat transfer in vacuum condensers
Heat absorption in radiant section of a furnace
Heat transfer by forced convection in a reboiler
Mass transfer co-efficient

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Furnace Technology
Circulation of gases in furnace is caused by the

Change in volume during a change of temperature
All of these
Difference in density between hot and cold gases
Furnace pressure in conjunction with draft in flues

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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.

2000
3000
6000
4500

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