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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The friction in the nozzle __________ exit velocity of steam.

None of these
Increases
Decreases
Has no effect on

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Steam Boilers, Engines, Nozzles and Turbines
O₂ content in atmospheric air on weight basis is

0.3
0.21
0.4
0.23

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Steam Boilers, Engines, Nozzles and Turbines
Heating wet steam at constant temperature is heating it at constant

Entropy
Pressure
Enthalpy
Volume

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Steam Boilers, Engines, Nozzles and Turbines
The velocity of whirl at outlet for an axial discharge turbine is

Zero
Maximum
Minimum
None of these

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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.

More
None of these
Less
Same

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Steam Boilers, Engines, Nozzles and Turbines
Thermal efficiency of a thermal power plant is of the order of

0.2
0.45
0.3
0.15

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