In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

Steam Boilers, Engines, Nozzles and Turbines
In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

640/3 m/s

640 m/s

320/3 m/s

160/3 m/s

640/3 m/s

640 m/s

320/3 m/s

160/3 m/s

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Steam Boilers, Engines, Nozzles and Turbines
The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate of the furnace is called

Forced steam jet draught

None of these

Chimney draught

Induced steam jet draught

Forced steam jet draught

None of these

Chimney draught

Induced steam jet draught

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following boiler works on a forced circulation of water?

Benson boiler

Lamont boiler

All of these

Loeffler boiler

Benson boiler

Lamont boiler

All of these

Loeffler boiler

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Steam Boilers, Engines, Nozzles and Turbines
O₂ content in atmospheric air on volume basis is

0.3

0.4

0.23

0.21

0.3

0.4

0.23

0.21

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Steam Boilers, Engines, Nozzles and Turbines
The reheat factor depends upon

All of these

Turbine stage efficiency

Initial pressure and superheat

Exit pressure

All of these

Turbine stage efficiency

Initial pressure and superheat

Exit pressure

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Steam Boilers, Engines, Nozzles and Turbines
The high steam and low water safety valve is used to blow off steam when the

None of these

Both (A) and (B)

Steam pressure exceeds the working pressure

Water level in the boiler becomes too low

None of these

Both (A) and (B)

Steam pressure exceeds the working pressure

Water level in the boiler becomes too low

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

Steam Boilers, Engines, Nozzles and Turbines The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate of the furnace is called

Steam Boilers, Engines, Nozzles and Turbines Which of the following boiler works on a forced circulation of water?

Steam Boilers, Engines, Nozzles and Turbines O₂ content in atmospheric air on volume basis is

Steam Boilers, Engines, Nozzles and Turbines The reheat factor depends upon

Steam Boilers, Engines, Nozzles and Turbines The high steam and low water safety valve is used to blow off steam when the

Steam Boilers, Engines, Nozzles and Turbines
In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

Steam Boilers, Engines, Nozzles and Turbines
The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate of the furnace is called

Steam Boilers, Engines, Nozzles and Turbines
Which of the following boiler works on a forced circulation of water?

Steam Boilers, Engines, Nozzles and Turbines
O₂ content in atmospheric air on volume basis is

Steam Boilers, Engines, Nozzles and Turbines
The reheat factor depends upon

Steam Boilers, Engines, Nozzles and Turbines
The high steam and low water safety valve is used to blow off steam when the