Steam Boilers, Engines, Nozzles and Turbines
Cut-off governing as compared to throttle governing is

More efficient and more economical
More efficient and less economical
Less efficient and less economical
Less efficient and more economical

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Steam Boilers, Engines, Nozzles and Turbines
In recuperative air preheaters, the heat is transferred

From a metal wall from one medium to another
Heat is transferred by bleeding some gases from furnace
From heating an intermediate material and then heating the air from this material
By direct mixing

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Steam Boilers, Engines, Nozzles and Turbines
Equivalent evaporation of water is the evaporation for a feed water supply at 100°C

And its corresponding conversion into dry saturated steam at 100°C and 1.033 kg/cm²
And its corresponding conversion into dry steam at desired boiler pressure
Conversion into steam at atmospheric condition
Conversion into steam at the same pressure at which feed water is supplied

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