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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,

Pressure remains constant
Velocity decreases
Velocity remains constant
Velocity increases

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Steam Boilers, Engines, Nozzles and Turbines
The average operating pressure of Benson boiler is

100 bar
150 bar
200 bar
250 bar

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is a fire tube boiler?

Lancashire boiler
Yarrow boiler
None of these
Babcock and Wilcox boiler

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Steam Boilers, Engines, Nozzles and Turbines
While steam expands in turbines, theoretically the entropy

Increases
Behaves unpredictably
Remains constant
Decreases

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

Behaves unpredictably
Increases
Remain same
Decreases

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Steam Boilers, Engines, Nozzles and Turbines
The basic purpose of drum in boiler is to

Serve as storage of feed water for water wall
Serve as storage of steam
Separate steam from water
Remove salts from water

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