Q. The action of steam in a steam turbine is

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Q. The blade velocity coefficient is ratio of relative velocity of steam at outlet tip of the blade to the relative velocity of steam at inlet tip of the blade.

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Q. Multi-stage steam turbines are of the

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Q. In reaction turbines, the axial thrust is due to

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Q. Which of the following statement is correct?

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Q. A binary vapour plant consists of

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Q. In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p2) will be

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Q. The reheat factor depends upon

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Q. In an impulse turbine

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Q. A nozzle is said to be a divergent nozzle

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Q. The ratio of the cumulative heat drop to the isentropic heat drop is called reheat factor.

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Q. The compounding of turbines is done in order to

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Q. The ratio of the isentropic heat drop to the heat supplied, is called

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Q. 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.

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Q. The efficiency ratio is the ratio of total useful heat drop to the total isentropic heat drop.

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Q. The purpose of governing in steam turbines is to

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Q. De-Laval turbines are mostly used

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Q. The velocity of steam, in reaction turbines, is increased in the fixed blades as well as in moving blades.

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Q. The critical pressure ratio for gases is

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Q. The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure compounded impulse turbine.

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