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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Which device is used in thermal power plants to reduce level of pollution?

Induced draft fan
Precipitator
Smoke meter
Chimney

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Steam Boilers, Engines, Nozzles and Turbines
The turbine blades are

Circular
Straight
Curved
None of these

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Steam Boilers, Engines, Nozzles and Turbines
De-Laval turbine is a

Impulse-reaction turbine
None of these
Simple reaction turbine
Simple impulse turbine

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Steam Boilers, Engines, Nozzles and Turbines
The heat loss in a boiler takes place in the form of

Heat carried away by ash
Heat carried away by flue gases
All of these
Moisture present in fuel and steam formed by combustion of hydrogen in fuel

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Steam Boilers, Engines, Nozzles and Turbines
Bomb calorimeter is used to determine

Higher calorific value at constant volume
Lower calorific value at constant pressure
Higher calorific value at constant pressure
Lower calorific value at constant volume

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Steam Boilers, Engines, Nozzles and Turbines
Cut-off governing of steam engines is a method of controlling the engine output by varying

Pressure of intake steam
All of these
Temperature of intake steam
Volume of intake steam

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