Furnace pressure is normally controlled by regulating the__________________?

Question: Blast furnace stoves are meant for heating
[A].

air

[B].

blast furnace gas

[C].

steam

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: An example of recuperative furnace is the
[A].

soaking pit

[B].

open hearth furnace

[C].

coke ovens

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of
[A].

use of non-preheated combustion air.

[B].

use of pulverised solid fuels.

[C].

imperfect mixing of fuel & air and infiltration of air.

[D].

use of excessive positive draft in the furnace.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C.
[A].

250

[B].

650

[C].

850

[D].

1000

Answer: Option B

Explanation:

No answer description available for this question.