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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
In a velocity compounded impulse turbine, when steam flows through the second row of moving blades,

Velocity increases
Velocity decreases
Velocity remains constant
Pressure remains constant

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Steam Boilers, Engines, Nozzles and Turbines
Size of boiler tubes is specified by

Inside diameter and thickness
Mean diameter and thickness
Outside diameter and thickness
Outside diameter and inside diameter

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Steam Boilers, Engines, Nozzles and Turbines
The latent heat of steam with increase of pressure

Decreases
Behaves unpredictably
Increases
Remain same

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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
Sulphur in coal results in

Spontaneous combustion during coal storage
Facilitating ash precipitation
All of these
Corroding air heaters

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Steam Boilers, Engines, Nozzles and Turbines
The variation of steam pressure in the nozzle depends upon

Specific volume of steam
All of these
Velocity of steam
Dryness fraction of steam

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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