_The efficiency of a boiler is defined as$? – McqOptions

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1.	_The efficiency of a boiler is defined as$?
A.	Ratio of heat actually used in producing steam to the heat liberated in the furnace
B.	Ratio of the mass of steam produced to the mass of total water supplied in a given time
C.	Ratio of the heat liberated in the furnace to the heat actually used in producing steam
D.	None of the above
Answer» B. Ratio of the mass of steam produced to the mass of total water supplied in a given time

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