__________ extractor uses centrifugal force for separating the two phases.

Question: Ingress of cold air in the furnaces through cracks, charging doors, openings etc.
[A].

reduces the flue gas temperature and makes the furnace atmosphere oxidising.

[B].

increases the load on the induced draft fan.

[C].

reduces the furnace draught.

[D].

all (a), (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.