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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Hygrometry deals with the

Pressure of air
Temperature of air
Water vapor in air
Hygroscopic substances

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Steam Boilers, Engines, Nozzles and Turbines
De-Laval turbines are mostly used

For large power purposes
Where low speeds are required
For small power purposes and high speeds
For small power purposes and low speeds

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Steam Boilers, Engines, Nozzles and Turbines
Bomb calorimeter is used to determine

Lower calorific value at constant pressure
Higher calorific value at constant pressure
Higher calorific value at constant volume
Lower calorific value at constant volume

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Steam Boilers, Engines, Nozzles and Turbines
The effect of super-saturation is that the

Exit velocity of steam reduces
Entropy and specific volume of the steam increases
All of these
Mass of the steam discharged increases

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Steam Boilers, Engines, Nozzles and Turbines
Expanding steam to a very low pressure (high vacuum) in steam engines is

Desirable
Economical
Uneconomical
Essential

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Steam Boilers, Engines, Nozzles and Turbines
The chimney draught varies with

All of these
Height of chimney
Temperature of furnace gases
Climatic conditions

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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