A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion.

Steam Boilers, Engines, Nozzles and Turbines
A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion.

270°

90°

60°

180°

270°

90°

60°

180°

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Steam Boilers, Engines, Nozzles and Turbines
Cut-off ratio is the ratio of

Swept volume to the volume at cut-off

Volume at cut-off to the clearance volume

Clearance volume to the volume at cut-off

Volume at cut-off to the swept volume

Swept volume to the volume at cut-off

Volume at cut-off to the clearance volume

Clearance volume to the volume at cut-off

Volume at cut-off to the swept volume

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Steam Boilers, Engines, Nozzles and Turbines
The overall efficiency of thermal power plant is

Carnot cycle efficiency

Regenerative cycle efficiency

All the three above plus gas cycle efficiency

Boiler efficiency, turbine efficiency, generator efficiency

Carnot cycle efficiency

Regenerative cycle efficiency

All the three above plus gas cycle efficiency

Boiler efficiency, turbine efficiency, generator efficiency

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Steam Boilers, Engines, Nozzles and Turbines
In natural circulation type boiler,

Water is converted into steam in one. Pass without any recirculation

Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum

Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam

Feed pump is employed to supplement natural circulation in water wall type furnace

Water is converted into steam in one. Pass without any recirculation

Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum

Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam

Feed pump is employed to supplement natural circulation in water wall type furnace

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Steam Boilers, Engines, Nozzles and Turbines
Willian’s line follows the law (where b = A constant representing the shape of the Willian’s line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)

m = a + b × I.P.

I.P. = b × m + a

I.P. = a × m + b

m = (b/I.P.) - a

m = a + b × I.P.

I.P. = b × m + a

I.P. = a × m + b

m = (b/I.P.) - a

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Steam Boilers, Engines, Nozzles and Turbines
The dry saturated steam at very low pressure, (510 kg/cm²) when throttled to atmosphere will become

Wet

Superheated

Remain dry saturated

Dry

Wet

Superheated

Remain dry saturated

Dry

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion.

Steam Boilers, Engines, Nozzles and Turbines Cut-off ratio is the ratio of

Steam Boilers, Engines, Nozzles and Turbines The overall efficiency of thermal power plant is

Steam Boilers, Engines, Nozzles and Turbines In natural circulation type boiler,

Steam Boilers, Engines, Nozzles and Turbines Willian’s line follows the law (where b = A constant representing the shape of the Willian’s line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)

Steam Boilers, Engines, Nozzles and Turbines The dry saturated steam at very low pressure, (510 kg/cm²) when throttled to atmosphere will become

Steam Boilers, Engines, Nozzles and Turbines
A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion.

Steam Boilers, Engines, Nozzles and Turbines
Cut-off ratio is the ratio of

Steam Boilers, Engines, Nozzles and Turbines
The overall efficiency of thermal power plant is

Steam Boilers, Engines, Nozzles and Turbines
In natural circulation type boiler,

Steam Boilers, Engines, Nozzles and Turbines
Willian’s line follows the law (where b = A constant representing the shape of the Willian’s line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)

Steam Boilers, Engines, Nozzles and Turbines
The dry saturated steam at very low pressure, (510 kg/cm²) when throttled to atmosphere will become