The pressure of steam at throat of a steam nozzle is called critical pressure.

More Questions from Steam Nozzles and Turbines

• 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.
• The pressure of steam __________ while flowing through a nozzle.
• In a single stage impulse turbine, the velocity of steam approaching nozzles is negligible.
• When the cross-section of a nozzle first increases from its entrance to throat, and then decreases from its throat to exit, it is not a convergent-divergent nozzle.
• A stage, in reaction turbine, is represented by
• A nozzle is said to be a divergent nozzle
• The ratio of the isentropic heat drop to the heat supplied, is called
• Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?
• For maximum efficiency of an impulse turbine, the steam should leave the blades at right angles to their motion.

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