If the thermal efficiencies of mercury and steam cycles are respective – McqOptions

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1.	If the thermal efficiencies of mercury and steam cycles are respectively η1 and η2 , then the overall efficiency of a binary cycle can be expressed as:
A.	η1 - η2
B.	η1 + η2
C.	η1 + η2 + η1 η2
D.	η1 + η2 - η1 η2
Answer» E.

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