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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Heating of dry steam above saturation temperature is known as

Latent heat
Superheating
Enthalpy
Super saturation

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Steam Boilers, Engines, Nozzles and Turbines
De-Laval turbine is a

Simple reaction turbine
Simple impulse turbine
None of these
Impulse-reaction turbine

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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.

None of these
More
Less
Same

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Steam Boilers, Engines, Nozzles and Turbines
A stage, in reaction turbine, is represented by

Each row of blades
Number of casing
Number of exits of steam
Number of entries of steam

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Steam Boilers, Engines, Nozzles and Turbines
Blading efficiency is also known as

Diagram efficiency
None of these
Stage efficiency
Nozzle efficiency

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Steam Boilers, Engines, Nozzles and Turbines
The economiser is used in boilers to

Economize on fuel
Increase thermal efficiency of boiler
Extract heat from the exhaust flue gases
Increase flue gas temperature

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