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Furnace Technology

Furnace Technology
Blast furnace stoves are meant for heating

Blast furnace gas
None of these
Steam
Air

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Furnace Technology
Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C.

250
850
650
1000

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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?

Ceramic recuperator
Regenerator
Economiser
Waste heat boiler

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Furnace Technology
Which of the following is not an additive for flue gases from furnace to reduce its dew-point?

Ammonia
Alkaline powders
Fine dolomite
None of these

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Furnace Technology
Scaling of furnace stock is reduced by __________ in flue gas.

High CO/CO₂
H₂
CO
All of these

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Furnace Technology
Example of an indirectly heated furnace is

Neither A nor B
Hood annealing furnace
Both A and B
Muffle furnace

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