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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The safety valve on boiler drum compared to safety valve on superheater is set at

Higher value
Lower value
Same value
Lower/higher depending on steam flow

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

Boiler efficiency, turbine efficiency, generator efficiency
Carnot cycle efficiency
All the three above plus gas cycle efficiency
Regenerative cycle efficiency

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following boiler is best suited to meet the fluctuating demand of steam?

Locomotive boiler
Lancashire boiler
Cornish boiler
Babcock and Wilcox boiler

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Steam Boilers, Engines, Nozzles and Turbines
Heating wet steam at constant temperature is heating it at constant

Volume
Pressure
Entropy
Enthalpy

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

Clearance volume to the volume at cut-off
Volume at cut-off to the swept volume
Volume at cut-off to the clearance volume
Swept volume to the volume at cut-off

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Steam Boilers, Engines, Nozzles and Turbines
The working pressure range for a LaMont boiler is

1 to 15 MN/m²
2.5 to 15 MN/m²
3.5 to 20 MN/m²
0.5 to 10 MN/m²

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