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Steam Boilers, Engines, Nozzles and Turbines

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

Isothermal process
Isentropic process
Throttling process
Free expansion process

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Steam Boilers, Engines, Nozzles and Turbines
The forced circulation of water does not take place in

LaMont boiler
Benson boiler
Lancashire boiler
Velox boiler

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Steam Boilers, Engines, Nozzles and Turbines
Expansion ratio is the ratio of

Swept volume to the clearance volume
Swept volume to the volume at cut-off
Volume at cut-off to the swept volume
Clearance volume to the swept volume

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of Cornish boiler is of the order of

23 m
12 m
2.53.5 m
1.52.5 m

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Steam Boilers, Engines, Nozzles and Turbines
Steam turbines may be classified according to

Direction of steam flow
Number of stages
All of these
Mode of steam action

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Steam Boilers, Engines, Nozzles and Turbines
The steam leaves the nozzle at a

Low pressure and a high velocity
Low pressure and a low velocity
High pressure and a low velocity
High pressure and a high velocity

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