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Q. |
What happens when too much excess air is supplied to the furnace in the process of combustion of coal? |
A. | there is a gain in heat in the furnace |
B. | no change occurs in the furnace |
C. | there is loss in heat in the furnace |
D. | the excess air escapes out |
Answer» C. there is loss in heat in the furnace | |
Explanation: in ordinary furnaces, 50 to 100 |
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