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Steam Nozzles and Turbines

21.

The process of maintaining the speed of the turbine constant for various load conditions, is known as

Answer: C

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Answer: D

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23.

In a nozzle, whole frictional loss is assumed to occur between

Answer: C

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24.

That density of super saturated steam is about.........that of the ordinary saturated vapour at the corresponding pressure

Answer: D

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25.

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.

Answer: A

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26.

The velocity of steam at throat of the nozzle is __________ the velocity of sound.

Answer: A

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Answer: A

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28.

The value of critical pressure ratio for initially wet steam is.......

Answer: D

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29.

The ratio of the workdone on the blades to the energy supplied to the blades, is called

Answer: A

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30.

The variation of steam pressure in the nozzle depends upon

Answer: D

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