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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

Superheating
Enthalpy
Super saturation
Latent heat

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Steam Boilers, Engines, Nozzles and Turbines
The velocity of flue gases (V) through the chimney under a static draught of (H') metres is given by

V = 2g H'
V = H'/2g
V = 2g/H'
V = 2gH'

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Steam Boilers, Engines, Nozzles and Turbines
In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the atmospheric pressure.

Higher than
Equal to
None of these
Lower than

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Steam Boilers, Engines, Nozzles and Turbines
The reheat factor depends upon

All of these
Exit pressure
Initial pressure and superheat
Turbine stage efficiency

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Steam Boilers, Engines, Nozzles and Turbines
The forced circulation of water does not take place in

Velox boiler
LaMont boiler
Lancashire boiler
Benson boiler

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

Horizontal
None of these
Vertical
Inclined

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