Air filtration in a furnace Options: A . &nbspReduces its thermal efficiency B . &nbspIs indicated by flame sting out C . &nbspIncreases the flue gas temperature D . &nbspNone of these

Air filtration in a furnace

Question

Air filtration in a furnace

Options:

A . Reduces its thermal efficiency

B . Is indicated by flame sting out

C . Increases the flue gas temperature

D . None of these

Answer: Option A

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