Chemical Engineering - Furnace Technology

Exercise :: Furnace Technology - Section 4

1. 

Which of the following variables affects the furnace capacity ?

A. Temperature of flue gas.
B. Thermal conductivity of stock.
C. Thickness of heating stock.
D. All (a), (b) and (c).

Answer: Option D

Explanation:

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2. 

In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the

A. rate of firing and emissivity of flame.
B. thermal conductivity of the charge & structural materials of furnace.
C. nature of process ; whether batch, continuous or intermittant.
D. all (a), (b) and (c)

Answer: Option D

Explanation:

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3. 

In which of the following furnaces, the gases are sucked through the stock bed from below?

A. Soaking pit
B. Sintering machine
C. Beehive oven
D. None of these

Answer: Option B

Explanation:

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4. 

Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an

A. economiser
B. steam superheater
C. air preheater
D. all (a), (b) and (c)

Answer: Option D

Explanation:

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5. 

Recuperator is

A. not used for fuel gas preheating.
B. an intermittant waste heat recovery equipment.
C. a continuous waste heat recovery equipment.
D. heavier than regenerator meant for the same duty.

Answer: Option C

Explanation:

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