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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Curtis turbine is a

Velocity compounded turbine
Simple reaction turbine
Pressure compounded turbine
Pressure-velocity compounded turbine

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Steam Boilers, Engines, Nozzles and Turbines
In a uniflow engine

None of these
Steam enters and exhausts through the same port
Steam enters at the centre and exhausts at the other end
Steam enters at one end and exhausts at the centre

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Steam Boilers, Engines, Nozzles and Turbines
When the cross-section of a nozzle increases continuously from entrance to exit, it is called a

Convergent-divergent nozzle
None of these
Divergent nozzle
Convergent nozzle

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

1 kg/cm²
10 kg/cm²
5 kg/cm²
18 kg/cm²

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Steam Boilers, Engines, Nozzles and Turbines
Expanding steam to a very low pressure (high vacuum) in steam engines is

Economical
Uneconomical
Desirable
Essential

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Steam Boilers, Engines, Nozzles and Turbines
Primary air is the air used to

Air delivered by forced draft fan
Convert CO (formed in lower zone of furnace) into CO₂ at higher zone
Transport and dry the coal
Provide air around burners for obtaining optimum combustion

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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