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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The pressure of steam __________ while flowing through a nozzle.

Remains constant
None of these
Increases
Decreases

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Steam Boilers, Engines, Nozzles and Turbines
The missing quantity per stroke is equal to

Mass of cushion steam + indicated mass of steam
Cylinder feed indicated mass of steam
Cylinder feed + indicated mass of steam
Mass of cushion steam + cylinder feed

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Steam Boilers, Engines, Nozzles and Turbines
Boiler parameters are expressed by

All of these
Temperature of steam in °C
Tonnes/hr. of steam
Pressure of steam in kg/cm²

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Steam Boilers, Engines, Nozzles and Turbines
In forced circulation steam boilers, the force is applied

To circulate water
To draw water
All of these
To drain off the water

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Steam Boilers, Engines, Nozzles and Turbines
The value of diagram factor depends upon

Back pressure
Initial conditions of steam
Initial pressure of steam
All of these

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Steam Boilers, Engines, Nozzles and Turbines
A supercritical boiler is one that operates above the pressure and temperature of following values

1 kg/cm² and 100°C
218 kg/cm² abs and 373°C
100 kg/cm² and 540°C
218 kg/cm² abs and 540°C

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