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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The critical pressure gives the velocity of steam at the throat

Equal to the velocity of sound
Less than the velocity of sound
More than the velocity of sound
None of these

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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
Internal efficiency
Stage efficiency
Rankine efficiency

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Steam Boilers, Engines, Nozzles and Turbines
A condenser where circulating water flows through tubes which are surrounded by steam, in known as

Evaporative condenser
Surface condenser
Jet condenser
Barometric condenser

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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
100°C
60°C

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Steam Boilers, Engines, Nozzles and Turbines
The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure compounded impulse turbine.

Less
More
Same
None of these

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is required for a steam condensing plant?

Condenser
Air extraction pump
Condensate pump
All of these

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