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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Desecration of feed water is carried out because it reduces

Heat transfer coefficient
Corrosion caused by oxygen
Cavitation of boiler feed pumps
pH value of water

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Steam Boilers, Engines, Nozzles and Turbines
A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90° to each other, is called

Receiver type compound engine
Woolf type compound engine
Both (A) and (B)
Tandem type compound engine

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following boiler works on a forced circulation of water?

Lamont boiler
Benson boiler
Loeffler boiler
All of these

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Steam Boilers, Engines, Nozzles and Turbines
The pressure of steam in the engine cylinder at the beginning of the stroke is ________ the boiler pressure.

None of these
Less than
Higher than
Equal to

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Steam Boilers, Engines, Nozzles and Turbines
The maximum discharge of steam through a convergent-divergent nozzle depends upon

Both (A) and (B)
Initial pressure and volume of steam
Final pressure of steam leaving the nozzle
Area of nozzle at throat

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

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

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