The arrangement of a once through boiler has no drums. The feed water is heated and then evaporated and superheated in ______ ______ through the unit.

The arrangement of a once through boiler has no drums. The feed water is heated and then evaporated and superheated in ______ ______ through the unit.



A ) Two passes
B ) One passage
C ) 3 passes
D ) 4 passes




Answer: B


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