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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The specific heat of superheated steam in kcal/kg is generally of the order of

0.1
0.5
0.3
0.8

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Steam Boilers, Engines, Nozzles and Turbines
Blading efficiency is also known as

Diagram efficiency
None of these
Nozzle efficiency
Stage efficiency

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Steam Boilers, Engines, Nozzles and Turbines
The high pressure and low pressure cylinders in a receiver type compound engine are regarded as having cranks

180° to each other
0° to each other
90° to each other
None of these

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Steam Boilers, Engines, Nozzles and Turbines
In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is

0.06 bar
0.067 bar
0.053 bar
0.007 bar

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Steam Boilers, Engines, Nozzles and Turbines
The reheat factor is the ratio of the

Total useful heat drop to the total isentropic heat drop
Cumulative heat drop to the isentropic heat drop
Isentropic heat drop to the heat supplied
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure gives the velocity of steam at the throat

None of these
Less than the velocity of sound
More than the velocity of sound
Equal to the velocity of sound

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