In a throttling process

Steam Boilers, Engines, Nozzles and Turbines
In a throttling process

Steam entropy remains constant

Steam enthalpy remains constant

Steam temperature remains constant

Steam pressure remains constant

Steam entropy remains constant

Steam enthalpy remains constant

Steam temperature remains constant

Steam pressure remains constant

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the clearance volume to the swept volume is called

Expansion ratio

None of these

Cut-off ratio

Clearance ratio

Expansion ratio

None of these

Cut-off ratio

Clearance ratio

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

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

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 converted into steam in one. Pass without any recirculation

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

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 converted into steam in one. Pass without any recirculation

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Steam Boilers, Engines, Nozzles and Turbines
When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as

Forced circulation boiler

Natural circulation boiler

Internally fired boiler

Externally fired boiler

Forced circulation boiler

Natural circulation boiler

Internally fired boiler

Externally fired boiler

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Steam Boilers, Engines, Nozzles and Turbines
A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly

340 kg/h

150 kg/h

280 kg/h

210 kg/h

340 kg/h

150 kg/h

280 kg/h

210 kg/h

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Steam Boilers, Engines, Nozzles and Turbines
A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as

Pass out turbine

Low pressure turbine

Impulse turbine

Back pressure turbine

Pass out turbine

Low pressure turbine

Impulse turbine

Back pressure turbine

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines In a throttling process

Steam Boilers, Engines, Nozzles and Turbines The ratio of the clearance volume to the swept volume is called

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

Steam Boilers, Engines, Nozzles and Turbines When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as

Steam Boilers, Engines, Nozzles and Turbines A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly

Steam Boilers, Engines, Nozzles and Turbines A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as

Steam Boilers, Engines, Nozzles and Turbines
In a throttling process

Steam Boilers, Engines, Nozzles and Turbines
The ratio of the clearance volume to the swept volume is called

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

Steam Boilers, Engines, Nozzles and Turbines
When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as

Steam Boilers, Engines, Nozzles and Turbines
A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly

Steam Boilers, Engines, Nozzles and Turbines
A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as