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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Alkaline pyrogallate is used in Orsat's apparatus for absorption of

N₂
CO₂
CO
O₂

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Steam Boilers, Engines, Nozzles and Turbines
The forced circulation of water does not take place in

Benson boiler
LaMont boiler
Velox boiler
Lancashire boiler

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

Temperature alone
Pressure alone
Pressure and dryness fraction
Pressure and temperature

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Steam Boilers, Engines, Nozzles and Turbines
One kilowatt-hour energy is equivalent to

3600 kJ
1000 J
3600 kW/sec
360 kJ

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Steam Boilers, Engines, Nozzles and Turbines
The safety valve on boiler drum compared to safety valve on superheater is set at

Lower/higher depending on steam flow
Higher value
Lower value
Same value

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

0.75
0.4
0.9
0.5

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