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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Curtis turbine is a

Pressure compounded turbine
Pressure-velocity compounded turbine
Simple reaction turbine
Velocity compounded turbine

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Steam Boilers, Engines, Nozzles and Turbines
In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from engine

Lancashire boiler
Locomotive boiler
Benson boiler
Babcock and Wilcox boiler

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Steam Boilers, Engines, Nozzles and Turbines
The diameters of fire tubes and superheater tubes in locomotive boiler are

47.5 mm, 130 mm
32.5 mm, 180 mm
65.5 mm, 210 mm
24.5 mm, 65 mm

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Steam Boilers, Engines, Nozzles and Turbines
Pulverized fuel is used for

Medium sized units
Less radiation loss
More calorific value
Better burning

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Steam Boilers, Engines, Nozzles and Turbines
Willian’s line for the steam engine is a straight line relationship between the steam consumption per hour and

Efficiency
Pressure of steam
Brake power
Indicated power

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Steam Boilers, Engines, Nozzles and Turbines
Benson boiler requires

One drum
No drum
Two drums
Three drums

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