Furnace Technology - Section 1

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.

1.

An example of shaft furnace is the

A.	L.D. converter
B.	glass melting tank
C.	blast furnace
D.	soaking pit

Answer: Option C

Explanation:

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2.

Which is not a hearth furnace ?

A.	Glass tank furnace
B.	Open hearth furnace
C.	Cupola
D.	Reheating furnace

Answer: Option C

Explanation:

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3.

In a muffle furnace, the muffle

A.	retards the heat transfer.
B.	assists in temperature equalisation in the charge.
C.	permits the use of controlled atmosphere for the protection of stock.
D.	all (a), (b) and (c).

Answer: Option D

Explanation:

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4.

The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent.

A.	50
B.	65
C.	85
D.	99

Answer: Option C

Explanation:

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5.

__________ is an indirectly heated furnace.

A.	Open hearth furnace
B.	Muffle furnace
C.	Soaking pit
D.	Reheating furnace

Answer: Option B

Explanation:

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6.

The amount of combustible escaping uncon-sumed from the furnace, depends upon the

A.	air supplied and furnace temperature.
B.	burner design (thoroughness of mixing versus stratification).
C.	air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction).
D.	all (a), (b) and (c).

Answer: Option D

Explanation:

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7.

Means for giving direction to the circulation of gases in furnaces are

A.	fans.
B.	arrangement of heating stock in the furnaces.
C.	location of outlet ports and heating & combustion devices.
D.	all (a), (b) and (c).

Answer: Option D

Explanation:

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8.

Power required in case of forced draught as compared to induced draught (for the same draught produced) is

A.	same
B.	less
C.	more
D.	either more or less; depends on the flue gas density

Answer: Option B

Explanation:

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