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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The diameter of a cylindrical shell of a Scotch marine boiler varies from

3.5 to 4.5 m
1.5 to 2 m
2.5 to 3.5 m
None of these

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Steam Boilers, Engines, Nozzles and Turbines
It is required to produce large amount of steam at low pressure. Which boiler should be used?

Cochran boiler
Babcock and Wilcox boiler
Pulverized fuel fired boiler
Lancashire boiler

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Steam Boilers, Engines, Nozzles and Turbines
The behavior of coal in a furnace is determined by

The content of ash and heating value
The content of sulphur
The exact analysis
The proximate analysis

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

CO
CO₂
O₂
N₂

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Steam Boilers, Engines, Nozzles and Turbines
The reheat factor depends upon

All of these
Exit pressure
Turbine stage efficiency
Initial pressure and superheat

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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 temperature
Pressure and dryness fraction

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