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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The ratio of the clearance volume to the swept volume is called

None of these
Clearance ratio
Expansion ratio
Cut-off ratio

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure ratio (p₂/p₁) is given by

(p₂/p₁) = [2/(n - 1)] n/(n + 1)
(p₂/p₁) = [2/(n + 1)] n/(n-1)
(p₂/p₁) = [(n - 1)/2] n + (1/n)
(p₂/p₁) = [(n + 1)/2] n - (1/n)

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Steam Boilers, Engines, Nozzles and Turbines
Reheating of steam under ideal conditions takes place at constant

Pressure
Entropy
Temperature
Enthalpy

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

Entropy
Enthalpy
Volume
Pressure

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Steam Boilers, Engines, Nozzles and Turbines
A condenser in a steam power plant

All of these
Reduces back pressure of steam
Increases expansion ratio of steam
Reduces temperature of exhaust steam

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Steam Boilers, Engines, Nozzles and Turbines
The relative heat absorption for successively added equal areas of boiler convection heating surfaces

Remain unaffected
Decreases
First increases and then decreases
Increases

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