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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The diameter of Cornish boiler is of the order of

23 m
12 m
1.52.5 m
2.53.5 m

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Steam Boilers, Engines, Nozzles and Turbines
The coal requirement per kW hour generation in the thermal power plant is of the order of

0.2 to 0.4 kg
1.0 to 1.5 kg
0.6 to 0.8 kg
0.1 to 0.2 kg

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Steam Boilers, Engines, Nozzles and Turbines
Willian's law states that the steam consumption per hour provided with a throttled governor is proportional to (where I.P. = Indicated power)

I.P.
1/(I.P)
(I.P.)²
1/(I.P)²

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Steam Boilers, Engines, Nozzles and Turbines
In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the atmospheric pressure.

Higher than
Lower than
Equal to
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The actual power supplied by the engine crankshaft is called

Brake power
None of these
Indicated power
Frictional power

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Steam Boilers, Engines, Nozzles and Turbines
One kg of steam sample contains 0.8 kg dry steam? Its dryness fraction is

1
0.8
0.2
0.6

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