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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A wet vapor can be completely specified by

Temperature only
Dryness fraction only
Pressure and dryness fraction
Pressure only

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Steam Boilers, Engines, Nozzles and Turbines
The basic purpose of drum in boiler is to

Serve as storage of feed water for water wall
Separate steam from water
Serve as storage of steam
Remove salts from water

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of brake power to the indicated power is known as

Overall efficiency
Brake thermal efficiency
Indicated thermal efficiency
Mechanical efficiency

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Steam Boilers, Engines, Nozzles and Turbines
The latent heat of steam with increase of pressure

Behaves unpredictably
Increases
Remain same
Decreases

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Steam Boilers, Engines, Nozzles and Turbines
The expansion of steam, as it flows over the blades in reaction turbine, represents

Throttling process
Free expansion process
Isothermal process
Isentropic process

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Steam Boilers, Engines, Nozzles and Turbines
Stage efficiency is also known as

Diagram efficiency
Gross efficiency
None of these
Nozzle efficiency

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