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Steam Boilers, Engines, Nozzles and Turbines

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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Steam Boilers, Engines, Nozzles and Turbines
The length of shell of a Locomotive boiler is

1 m
2 m
4 m
3 m

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

Transport and dry the coal
Cool the scanners
Provide air around burners for obtaining optimum combustion
Convert CO (formed in lower zone of furnace) into CO₂ at higher zone

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Steam Boilers, Engines, Nozzles and Turbines
The major axis of elliptical manholes on the shell should be provided

Circumferentially
Anywhere
On dished end
Longitudinally

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Steam Boilers, Engines, Nozzles and Turbines
The Parsons' reaction turbine has

Only moving blades
Only fixed blades
Identical fixed and moving blades
Fixed and moving blades of different shape

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Steam Boilers, Engines, Nozzles and Turbines
The density of supersaturated steam is about __________ that of the ordinary saturated vapor at the corresponding pressure.

8 times
2 times
4 times
Same as

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