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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
In locomotive boiler, maximum steam pressure is limited to

5 kg/cm²
10 kg/cm²
1 kg/cm²
18 kg/cm²

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

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

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Steam Boilers, Engines, Nozzles and Turbines
The value of diagram factor depends upon

Back pressure
Initial pressure of steam
Initial conditions of steam
All of these

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Steam Boilers, Engines, Nozzles and Turbines
Over fire burning is the phenomenon of

Supply of excess coal
Burning CO and unburnt in upper zone of furnace by supplying more air
Supply of excess, air
Fuel bed firing

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Steam Boilers, Engines, Nozzles and Turbines
The friction present between the steam and the nozzle surfaces reduces the heat drop by

15 to 25%
25 to 40%
10 to 15%
40 to 60%

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Steam Boilers, Engines, Nozzles and Turbines
Parson's turbine is a

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

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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