Rotary kilns are used in the____________________?

Question: Calcination of limestone to produce lime is done in a __________ kiln.
[A].

tunnel

[B].

rotary

[C].

vertical shaft

[D].

both (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.

Question: 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
[A].

furnace oil with air.

[B].

furnace oil with oxygen.

[C].

blast furnace gas with air.

[D].

blast furnace gas with oxygen.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Air filtration in a furnace
[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

Explanation:

No answer description available for this question.