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In regenerative air preheater, the heat is transferred | |
A. | from a metal wall from one medium to another [Wrong Answer] |
B. | from heating an intermediateanaterial and then heating the air from this material [Correct Answer] |
C. | by direct mixing [Wrong Answer] |
D. | heat is transferred by bleeding some gas from furnace [Wrong Answer] |
E. | none of the above. [Wrong Answer] |