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

160/3 m/s

640 m/s

640/3 m/s

320/3 m/s

160/3 m/s

640 m/s

640/3 m/s

320/3 m/s

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Steam Boilers, Engines, Nozzles and Turbines
During polytropic process

Work is done

Heat transfer takes place across cylinder walls

Steam may be wet, dry or superheated after expansion

All of these

Work is done

Heat transfer takes place across cylinder walls

Steam may be wet, dry or superheated after expansion

All of these

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Steam Boilers, Engines, Nozzles and Turbines
A closed vessel made of steel and used for the generation of steam is called a

Steam injector

Steam condenser

Steam turbine

Steam boiler

Steam injector

Steam condenser

Steam turbine

Steam boiler

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Steam Boilers, Engines, Nozzles and Turbines
The flow through a nozzle is regarded as

Isentropic flow

Constant pressure flow

Isothermal flow

Constant volume flow

Isentropic flow

Constant pressure flow

Isothermal flow

Constant volume flow

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the isentropic heat drop to the heat supplied, is called

Stage efficiency

Internal efficiency

Reheat factor

Rankine efficiency

Stage efficiency

Internal efficiency

Reheat factor

Rankine efficiency

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Steam Boilers, Engines, Nozzles and Turbines
On Millier chart, the constant pressure lines

Are equally spaced throughout

Diverge from left to right

Diverge from right to left

First rise up and then fall

Are equally spaced throughout

Diverge from left to right

Diverge from right to left

First rise up and then fall

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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 During polytropic process

Steam Boilers, Engines, Nozzles and Turbines A closed vessel made of steel and used for the generation of steam is called a

Steam Boilers, Engines, Nozzles and Turbines The flow through a nozzle is regarded as

Steam Boilers, Engines, Nozzles and Turbines The ratio of the isentropic heat drop to the heat supplied, is called

Steam Boilers, Engines, Nozzles and Turbines On Millier chart, the constant pressure lines

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
During polytropic process

Steam Boilers, Engines, Nozzles and Turbines
A closed vessel made of steel and used for the generation of steam is called a

Steam Boilers, Engines, Nozzles and Turbines
The flow through a nozzle is regarded as

Steam Boilers, Engines, Nozzles and Turbines
The ratio of the isentropic heat drop to the heat supplied, is called

Steam Boilers, Engines, Nozzles and Turbines
On Millier chart, the constant pressure lines