Chemical Engineering - Furnace Technology
Exercise :: Furnace Technology - Section 3
| 16. |
Artificial draught produced by a fan in the furnace can be controlled by the |
| A. |
speed of the fan. | | B. |
damper. | | C. |
variation in the pitch of fan blades. | | D. |
all (a), (b) and (c). |
Answer: Option D
Explanation:
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| 17. |
Regenerators as compared to recuperators for the same duty |
| A. |
store smaller quantity of waste heat | | B. |
are lighter & compact | | C. |
involve higher initial cost | | D. |
all (a), (b) & (c) |
Answer: Option C
Explanation:
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| 18. |
Circulation of gases in furnace is caused by the |
| A. |
change in volume during a change of temperature. | | B. |
difference in density between hot and cold gases. | | C. |
furnace pressure in conjunction with draft in flues. | | D. |
all (a), (b) and (c). |
Answer: Option D
Explanation:
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| 19. |
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:
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| 20. |
If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace. |
| A. |
sidefired | | B. |
underfired | | C. |
covered | | D. |
recirculating |
Answer: Option B
Explanation:
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