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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Willian’s line for the steam engine is a straight line relationship between the steam consumption per hour and

Brake power
Indicated power
Efficiency
Pressure of steam

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Steam Boilers, Engines, Nozzles and Turbines
The draught in locomotive boilers is produced by a

Steam jet
Chimney
None of these
Centrifugal fan

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Steam Boilers, Engines, Nozzles and Turbines
One kilowatt-hour energy is equivalent to

3600 kJ
3600 kW/sec
1000 J
360 kJ

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Steam Boilers, Engines, Nozzles and Turbines
Sulphur in coal results in

Facilitating ash precipitation
All of these
Spontaneous combustion during coal storage
Corroding air heaters

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Steam Boilers, Engines, Nozzles and Turbines
An economiser is installed in a boiler primarily to

All of the listed here
Reduce fuel consumption
Superheat the steam
Increase steam pressure

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Steam Boilers, Engines, Nozzles and Turbines
The aim of a compound steam engine is

All of these
To reduce the length of stroke
To reduce the temperature range in each cylinder
To reduce the ratio of expansion in each cylinder

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