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Steam Boilers, Engines, Nozzles and Turbines

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

Velox boiler
Benson boiler
Lancashire boiler
LaMont boiler

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Steam Boilers, Engines, Nozzles and Turbines
The pressure velocity compounded impulse turbine allows a bigger pressure drop and hence __________ numbers of stages are required.

Less
Equal
None of the listed here
More

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Steam Boilers, Engines, Nozzles and Turbines
In order to compare the capacity of boilers, the feed water temperature and working pressure are taken as

50°C and normal atmospheric pressure
100°C and 1.1 bar pressure
50°C and 1.1 bar pressure
100°C and normal atmospheric pressure

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Steam Boilers, Engines, Nozzles and Turbines
Film boiling occurs at

Atmospheric pressures
Medium pressures
Very low pressure
Very high pressures

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of superheated tubes in a locomotive boiler is

230 mm
31 mm
13 mm
130 mm

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Steam Boilers, Engines, Nozzles and Turbines
The impulse reaction turbine has its driving force

As an impulsive force
As a reaction force
None of the listed here
Partly as an impulsive force and partly as a reaction force

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