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Steam Nozzles and Turbines
Parson's turbine is a
simple impulse turbine
simple reaction turbine
impulse-reaction turbine
none of these
Correct Answer:
simple reaction turbine
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Steam Nozzles and Turbines
In a convergent divergent nozzle, the discharge depends upon the initial conditions of steam and the area of nozzle at throat.
The rate of discharge through the nozzle __________ when the exit pressure is gradually reduced.
When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be
A nozzle is said to be a convergent nozzle
The critical pressure ratio for initially dry saturated steam is more as compared to initially wet steam.
In a reaction turbine
The critical pressure ratio for gases is
The velocity of steam at throat of the nozzle is __________ the velocity of sound.
The reheat factor depends upon
The ratio of the workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam is called
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