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Steam Boilers and Engines
The efficiency of a boiler is defined as
ratio of heat actually used in producing steam to the heat liberated in the furnace
ratio of the mass of steam produced to the mass of total water supplied in a given time
ratio of the heat liberated in the furnace to the heat actually Used in producing steam
none of the above
Correct Answer:
ratio of heat actually used in producing steam to the heat liberated in the furnace
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