Furnace Technology - Section 1 (3)

Directions to Solve

Furnace Technology - Section 1

If you are looking for MCQs and other problems based on Furnace
technology then you are at right place, you can find these problems in the following section.

17.

Pulverised fuel fired furnaces employ __________ fuel firing.

A.	horizontal
B.	vertical
C.	tangential
D.	all (a), (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

18.

Large tonnage of refractory bricks are dried in a

A.	shaft furnace
B.	rotary hearth furnace
C.	tunnel kiln
D.	muffle furnace

Answer: Option C

Explanation:

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19.

To reduce the stack loss, heat recovery from flue gas can be done by

A.	preheating of cold stock.
B.	preheating of combustion air.
C.	steam generation in waste heat boilers.
D.	all (a), (b) and (c).

Answer: Option D

Explanation:

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20.

Which of the following is a natural draft furnace ?

A.	Blast furnace stoves
B.	Power plant boilers
C.	Sintering furnace
D.	None of these

Answer: Option A

Explanation:

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21.

Maximum heat transfer in high temperature furnaces is by

A.	conduction
B.	convection
C.	radiation
D.	either (a), (b) or (c); depends on the type of furnace

Answer: Option C

Explanation:

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22.

Ostwald charts are meant for

A.	computing the excess/deficiency of combustion air.
B.	calculation of flue gas temperature.
C.	computation of flue gas analysis.
D.	none of these.

Answer: Option A

Explanation:

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23.

An example of a periodic furnace is the

A.	blast furnace stoves
B.	blast furnace
C.	coke oven heating chamber
D.	rotary kilns

Answer: Option A

Explanation:

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24.

In reverberatory furnace, charge is heated mainly by

A.	conduction.
B.	natural convection.
C.	radiation of heat from the roof of the combustion chamber.
D.	none of these.

Answer: Option C

Explanation:

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