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Steam Nozzles and Turbines
The compounding of turbines is done in order to
reduce speed of rotor
improve efficiency
reduce exit losses
all of these
Correct Answer:
all of these
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Steam Nozzles and Turbines
The efficiency ratio is the ratio of total useful heat drop to the total isentropic heat drop.
The nozzle efficiency is the ratio of
The ratio of the cumulative heat drop to the isentropic heat drop is called reheat factor.
When the nozzle operates with the maximum mass flow, the nozzle is said to be
In a De-Laval impulse turbine, the nozzle is kept very close to the blades.
Reheating of steam in a turbine
In a velocity compounded impulse turbine, when steam flows through the second row of moving blades,
Rateau turbine is
The purpose of governing in steam turbines is to
When the cross-section of a nozzle increases continuously from entrance to exit, it is called a
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