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Furnace Technology

Furnace Technology
Blast furnace stoves are meant for heating

Steam
Blast furnace gas
None of these
Air

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

More of CO in flue gas
Less of excess air
More of CO₂ in flue gas
More of excess air

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Furnace Technology
Regenerators are normally provided in the

All of these
By product coke ovens
Glass melting furnace
Open hearth furnace

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Furnace Technology
Which furnace employs natural draft?

L.D. converter
Coke oven
Rotary kilns
Boiler

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Furnace Technology
The function of an economiser in a boiler is to preheat the

Feedwater
Combustion air
Furnace oil
Pulverised coal

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Furnace Technology
Which of the following is the most suitable for preheating combustion air above 650°C ?

Metallic recuperator
None of these
Ceramic recuperator
Regenerator

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