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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Parson's turbine is a

None of these
Simple reaction turbine
Impulse-reaction turbine
Simple impulse turbine

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Steam Boilers, Engines, Nozzles and Turbines
Willian’s line follows the law (where b = A constant representing the shape of the Willian’s line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)

m = (b/I.P.) - a
m = a + b × I.P.
I.P. = b × m + a
I.P. = a × m + b

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Steam Boilers, Engines, Nozzles and Turbines
A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off of 0.35. The expansion ratio for this engine is nearly

10.05
1.05
2.86
6.65

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Steam Boilers, Engines, Nozzles and Turbines
Evaporative capacity of boiler is expressed as

kg of steam produced per kg of fuel fifed
kg of fuel fired
kg of steam produced
Steam pressure produced

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Steam Boilers, Engines, Nozzles and Turbines
Rateau turbine is

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

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Steam Boilers, Engines, Nozzles and Turbines
Stage efficiency is also known as

Nozzle efficiency
Diagram efficiency
None of these
Gross efficiency

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