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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Hard coke is used in

Domestic use
Blast furnace
Cement industry
Thermal power plant

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Steam Boilers, Engines, Nozzles and Turbines
Cut-off governing of steam engines is a method of controlling the engine output by varying

All of these
Volume of intake steam
Temperature of intake steam
Pressure of intake steam

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Steam Boilers, Engines, Nozzles and Turbines
The steam temperature with increase in load in case of a boiler fitted with radiation superheater

Remain unaffected
First increases and then decreases
Increases
Decreases

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of tubes for natural circulation boiler as compared to controlled circulation boilers is

Could be more or less depending on other factors
Same
Less
More

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Steam Boilers, Engines, Nozzles and Turbines
For combustion of a fuel, following is essential

Correct fuel air ratio
All the three above
O₂ to support combustion
Proper ignition temperature

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Steam Boilers, Engines, Nozzles and Turbines
In order to reduce the rotor speed of an impulse turbine, the method employed is

Velocity compounding
Pressure-velocity compounding
All of these
Pressure compounding

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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