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FURNACE TECHNOLOGY

Furnace Technology
If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.

Rotary
Premix
Diffusion
Outside mixing type

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Furnace Technology
Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of

Furnace oil with air
Blast furnace gas with air
Furnace oil with oxygen
Blast furnace gas with oxygen

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Furnace Technology
Protective gas used in the annealing furnace for steel coil comprises of

5% H₂ + 9% N₂
100 %H₂
95% N₂ + 5% H₂
100% CO

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Furnace Technology
__________ furnace is not an electric furnace.

Arc
Induction
Resistance
Pot

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Furnace Technology
In reverberatory furnace, charge is heated mainly by

Radiation of heat from the roof of the combustion chamber
Conduction
None of these
Natural convection

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