Chemical Engineering - Furnace Technology

Exercise :: Furnace Technology - Section 2

11. 

Test specimen for determination of refractoriness under load (RUL) of a refractory is heated in a

A. furnace employing neutral atmosphere.
B. carbon resistance furnace.
C. reducing atmosphere.
D. furnace employing negative pressure.

Answer: Option B

Explanation:

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12. 

Regenerators compared to the recuperators for the same duty

A. occupy more space
B. are less costly
C. are of smaller size
D. all (a), (b) and (c)

Answer: Option A

Explanation:

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13. 

Regenerators are used for waste heat recovery in

A. by-product coke ovens
B. beehive coke oven
C. blast furnace stoves
D. soaking pits

Answer: Option A

Explanation:

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14. 

Which of the following furnaces will have maximum thermal efficiency ?

A. Soaking pits
B. Walking beam reheating furnace
C. Boiler furnace
D. Rotary kilns

Answer: Option C

Explanation:

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15. 

Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an

A. blast furnace.
B. steam boiler.
C. salt bath furnace.
D. annealing furnace.

Answer: Option C

Explanation:

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