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Steam Nozzles and Turbines
Blading efficiency is also known as
stage efficiency
diagram efficiency
nozzle efficiency
none of these
Correct Answer:
diagram efficiency
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Steam Nozzles and Turbines
The Rankine efficiency depends upon total useful heat drop and total isentropic heat drop.
The critical pressure ratio for initially dry saturated steam is
The ratio of the work delivered at the turbine shaft to the heat supplied is called overall thermal efficiency of turbine.
The process of maintaining the speed of the turbine constant for various load conditions, is known as
The maximum discharge of steam through a convergent-divergent nozzle depends upon
The pressure of steam, in reaction turbines, is reduced in the fixed blades as well as in moving blades.
The ratio of the energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam is called mechanical efficiency.
The pressure of steam at throat of a steam nozzle is called critical pressure.
The friction in the nozzle __________ exit velocity of steam.
The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure compounded impulse turbine.
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