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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The friction in the nozzle __________ exit velocity of steam.

Increases
None of these
Has no effect on
Decreases

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the clearance volume to the swept volume is called

Clearance ratio
Expansion ratio
Cut-off ratio
None of these

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Steam Boilers, Engines, Nozzles and Turbines
If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined by

Separating calorimeter
Throttling calorimeter
Bucket calorimeter
Combined separating and throttling calorimeter

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Steam Boilers, Engines, Nozzles and Turbines
Ultimate analysis of fuel is determination of percentage of

Lower calorific value
Fixed carbon, ash, volatile matter, moisture
Carbon, hydrogen, nitrogen, sulphur, moisture
Higher calorific value

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Steam Boilers, Engines, Nozzles and Turbines
The impulse reaction turbine has its driving force

None of the listed here
As a reaction force
Partly as an impulsive force and partly as a reaction force
As an impulsive force

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Steam Boilers, Engines, Nozzles and Turbines
The selection of type and size of a steam boiler depends upon

All of these
The fuel and water available
The geographical position of the power house
The power required and working pressure

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