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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Willian’s line for the steam engine is a straight line relationship between the steam consumption per hour and

Efficiency
Pressure of steam
Brake power
Indicated power

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Steam Boilers, Engines, Nozzles and Turbines
The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure compounded impulse turbine.

None of these
More
Less
Same

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Steam Boilers, Engines, Nozzles and Turbines
Reheating of steam in a turbine

All of these
Increases the work-done through the turbine
Reduces wear on the blades
Increases the efficiency of the turbine

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Steam Boilers, Engines, Nozzles and Turbines
In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of

40 atmospheres
10 atmospheres
20 atmospheres
30 atmospheres

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as

Efficiency of the fan
Power of the boiler
Efficiency of the chimney
Efficiency of the boiler

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Steam Boilers, Engines, Nozzles and Turbines
The pressure of steam __________ while flowing through a nozzle.

Increases
None of these
Decreases
Remains constant

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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