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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The diameter of Cornish boiler is of the order of

2.53.5 m
1.52.5 m
23 m
12 m

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Steam Boilers, Engines, Nozzles and Turbines
The forced circulation of water does not take place in

Benson boiler
Velox boiler
LaMont boiler
Lancashire boiler

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the work-done on the blades per kg of steam to the total energy supplied per stage per kg of steam is called

Blading efficiency
Stage efficiency
Nozzle efficiency
Mechanical efficiency

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Steam Boilers, Engines, Nozzles and Turbines
100% efficiency of a thermal cycle cannot be achieved because of

Leakage
It is not possible to achieve 0°K temperature
Non availability of ideal substance
Frictional losses

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Steam Boilers, Engines, Nozzles and Turbines
With increase in load, radiant superheater has

Flat characteristic
Linear characteristic
Drooping characteristic
Rising characteristic

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Steam Boilers, Engines, Nozzles and Turbines
Steam turbines are used for

Electric power generation
All of these
Direct drive of fans, compressors, pumps
Large marine propulsion

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