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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
By compounding the expansion of steam in two or more cylinders, the ratio of expansion

None of these
Does not change
Increases
Decreases

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Steam Boilers, Engines, Nozzles and Turbines
A single acting steam engine produces ___ power than that of double acting steam engine.

Half
Four times
Double
Equal

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Steam Boilers, Engines, Nozzles and Turbines
The effect of bleeding is that

Boiler is supplied with hot water
It increases the thermodynamic efficiency of the turbine
It decreases the power developed by the turbine
All of these

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of tubes for natural circulation boiler as compared to controlled circulation boilers is

Less
More
Could be more or less depending on other factors
Same

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Steam Boilers, Engines, Nozzles and Turbines
In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 mts. and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is

0.5
0.8
0.25
0.4

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in a Cochran boiler are

Horizontal
Inclined
None of these
Vertical

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