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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)

Decreases
None of these
Remains constant
Increases

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following compound steam engine requires a smaller flywheel?

Tandem type
Woolf type
Receiver type
All of these

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Steam Boilers, Engines, Nozzles and Turbines
Thermal efficiency of well maintained boiler will be of the order

0.9
0.5
0.4
0.75

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Steam Boilers, Engines, Nozzles and Turbines
The dry saturated steam at very high pressure (150200 kg/cm²) when throttled to atmosphere will become

Remain dry saturated
Superheated
Wet
Dry

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

None of these
Decreases
Remains constant
Increases

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Steam Boilers, Engines, Nozzles and Turbines
The actual power supplied by the engine crankshaft is called

Brake power
Indicated power
Frictional power
None of these

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