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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The state of vapor under saturation condition is described by

Pressure and temperature
Pressure and dryness fraction
Pressure alone
Temperature alone

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Steam Boilers, Engines, Nozzles and Turbines
The three "Ts" for good combustion are

Thorough mixing, total air and temperature
Temperature, time, and turbulence
Total air, true fuel, and turbulence
Total air, time, and temperature

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Steam Boilers, Engines, Nozzles and Turbines
Maximum energy loss in a boiler occurs due to

Ash content
Flue gases
Incomplete combustion
Unburnt carbon in ash

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Steam Boilers, Engines, Nozzles and Turbines
The dry saturated steam at very low pressure, (510 kg/cm²) when throttled to atmosphere will become

Wet
Superheated
Remain dry saturated
Dry

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

Volume
Pressure
Entropy
Enthalpy

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Steam Boilers, Engines, Nozzles and Turbines
A device used to heat feed water by utilizing the heat in me exhaust flue gases before leaving through the chimney, is known as

Stop valve
Superheater
Economizer
Fusible plug

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