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 m/s

320/3 m/s

640/3 m/s

160/3 m/s

640 m/s

320/3 m/s

640/3 m/s

160/3 m/s

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Steam Boilers, Engines, Nozzles and Turbines
When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by

(h - hf1)/2257

(h × hf1)/2257

(h + hf1)/2257

None of these

(h - hf1)/2257

(h × hf1)/2257

(h + hf1)/2257

None of these

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Steam Boilers, Engines, Nozzles and Turbines
In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is

0.007 bar

0.067 bar

0.053 bar

0.06 bar

0.007 bar

0.067 bar

0.053 bar

0.06 bar

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Steam Boilers, Engines, Nozzles and Turbines
Sublimation region is the region where

Solid and vapor phases are in equilibrium

Solid, liquid and vapor phases are in equilibrium

Solid and liquid phases are in equilibrium

Liquid and vapor phases are in equilibrium

Solid and vapor phases are in equilibrium

Solid, liquid and vapor phases are in equilibrium

Solid and liquid phases are in equilibrium

Liquid and vapor phases are in equilibrium

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Steam Boilers, Engines, Nozzles and Turbines
The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure compounded impulse turbine.

More

None of these

Less

Same

More

None of these

Less

Same

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Steam Boilers, Engines, Nozzles and Turbines
The selection of type and size of a steam boiler depends upon

The power required and working pressure

The fuel and water available

All of these

The geographical position of the power house

The power required and working pressure

The fuel and water available

All of these

The geographical position of the power house

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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 When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by

Steam Boilers, Engines, Nozzles and Turbines In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is

Steam Boilers, Engines, Nozzles and Turbines Sublimation region is the region where

Steam Boilers, Engines, Nozzles and Turbines The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure compounded impulse turbine.

Steam Boilers, Engines, Nozzles and Turbines The selection of type and size of a steam boiler depends upon

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
When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by

Steam Boilers, Engines, Nozzles and Turbines
In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is

Steam Boilers, Engines, Nozzles and Turbines
Sublimation region is the region where

Steam Boilers, Engines, Nozzles and Turbines
The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure compounded impulse turbine.

Steam Boilers, Engines, Nozzles and Turbines
The selection of type and size of a steam boiler depends upon