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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Efficiency of a thermal cycle increases by

Cooling of steam
Both (A) and (B)
Regeneration
Reheating of steam

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Steam Boilers, Engines, Nozzles and Turbines
A steam nozzle converts

Kinetic energy into heat energy of steam
Heat energy of steam into potential energy
Heat energy of steam into kinetic energy
Potential energy into heat energy of steam

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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
Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler

Decreases
First increases and then decreases
Increases
Remain unaffected

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the isentropic heat drop to the heat supplied, is called

Reheat factor
Stage efficiency
Internal efficiency
Rankine efficiency

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Steam Boilers, Engines, Nozzles and Turbines
A condenser in a steam power plant

Reduces back pressure of steam
Reduces temperature of exhaust steam
Increases expansion ratio of steam
All of these

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