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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The ratio of the actual vacuum to the ideal vacuum in a condenser is called

Nozzle efficiency
Boiler efficiency
Vacuum efficiency
Condenser efficiency

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Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine, when steam flows through the moving blades,

Pressure increases while velocity decreases
Pressure and velocity both increases
Pressure decreases while velocity increases
Pressure and velocity both decreases

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Steam Boilers, Engines, Nozzles and Turbines
The amount of water evaporated from feed water at _________ into dry and saturated steam at 100° C at normal atmospheric pressure is called equivalent evaporation from and at 100° C.

0°C
40°C
60°C
100°C

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Steam Boilers, Engines, Nozzles and Turbines
In forced circulation steam boilers, the force is applied

To draw water
To circulate water
All of these
To drain off the water

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Steam Boilers, Engines, Nozzles and Turbines
The bituminous coal is no caking if its carbon content is

90-95%
81-85%
85-90%
78-81%

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Steam Boilers, Engines, Nozzles and Turbines
Heating wet steam at constant temperature is heating it at constant

Pressure
Volume
Entropy
Enthalpy

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