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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The diameter of Cornish boiler varies from

1 to 2 m
1.25 to 2.5 m
2 to 3 m
0.5 to 1 m

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Steam Boilers, Engines, Nozzles and Turbines
The heat balance sheet for the boiler shows the

Steam formed by combustion of hydrogen per kg of fuel
Complete account of heat supplied by 1 kg of dry fuel and the heat consumed
Moisture present in the fuel
All of these

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Steam Boilers, Engines, Nozzles and Turbines
In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is

Very low
Very high
Low
High

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Steam Boilers, Engines, Nozzles and Turbines
During polytropic process

Work is done
Steam may be wet, dry or superheated after expansion
All of these
Heat transfer takes place across cylinder walls

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Steam Boilers, Engines, Nozzles and Turbines
The maximum discharge of steam through a convergent-divergent nozzle depends upon

Area of nozzle at throat
Initial pressure and volume of steam
Final pressure of steam leaving the nozzle
Both (A) and (B)

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Steam Boilers, Engines, Nozzles and Turbines
The number of water level indicators in a boiler are generally __________ in number.

Four
Two
Three
One

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