If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an ______________ furnace?

Question: __________ is an indirectly heated furnace.
[A].

Open hearth furnace

[B].

Muffle furnace

[C].

Soaking pit

[D].

Reheating furnace

Answer: Option B

Explanation:

No answer description available for this question.

Question: Operation of blast furnace stove is based on the principles of a __________ furnace.
[A].

regenerative

[B].

recuperative

[C].

both (a) and (b)

[D].

neither (a) nor (b).

Answer: Option A

Explanation:

No answer description available for this question.

Question: Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C.
[A].

5

[B].

60

[C].

20

[D].

40

Answer: Option C

Explanation:

No answer description available for this question.

Question: Furnace aerodynamics is related to the __________ in the furnace.
[A].

movement of gases

[B].

measurement of flue gas volume

[C].

temperature control

[D].

pressure adjustment

Answer: Option A

Explanation:

No answer description available for this question.