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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Superheating of steam is done at

Constant temperature
Constant entropy
Constant volume
Constant pressure

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Steam Boilers, Engines, Nozzles and Turbines
The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as

Injector
Feed pump
Feed check valve
Pressure gauge

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Steam Boilers, Engines, Nozzles and Turbines
In a nozzle, the effect of super-saturation is to

Decrease specific volume of steam
Decrease dryness fraction of steam
Increase the heat drop
Increase the entropy

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler is

All of these
Internally fired boiler
Stationary fire tube boiler
Horizontal boiler

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Steam Boilers, Engines, Nozzles and Turbines
The supersaturated flow of steam through a nozzle as compared to a stable flow, the available heat drop

Decreases
Is unpredictable
Increases
Remains the same

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Steam Boilers, Engines, Nozzles and Turbines
Water boils when its vapor pressure

Equals to atmospheric pressure
Equals that of the surroundings
Equals the pressure of water in the container
Equals 760 mm of mercury

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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