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FURNACE TECHNOLOGY

Furnace Technology
An example of indirectly heated furnace is the

None of these
Muffle furnace
Reheating furnace
Soaking pit

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Furnace Technology
The resistance furnace produces heat by the

Flow of current through a heating element
Electric arc struck between electrodes and the charge
None of these
Combination of induced current and skin effect

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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?

Economiser
Regenerator
Waste heat boiler
Ceramic recuperator

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Furnace Technology
Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.

50
150
100
250

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Furnace Technology
In order to maintain a reducing atmosphere in a furnace, it should have

CO in flue gas
None of these
High excess air
No O₂ in flue gas

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