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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are

Internally as well as externally fired
Externally fired
Internally fired
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The velocity of whirl at outlet for an axial discharge turbine is

None of these
Zero
Minimum
Maximum

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Steam Boilers, Engines, Nozzles and Turbines
Water boils when its vapor pressure

Equals the pressure of water in the container
Equals that of the surroundings
Equals to atmospheric pressure
Equals 760 mm of mercury

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Steam Boilers, Engines, Nozzles and Turbines
The water tubes in a simple vertical boiler are

Vertical
None of the listed here
Inclined
Horizontal

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the actual vacuum to the ideal vacuum in a condenser is called

Vacuum efficiency
Nozzle efficiency
Condenser efficiency
Boiler efficiency

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Steam Boilers, Engines, Nozzles and Turbines
The number of flue tubes in Lancashire boiler is

Zero
Four
One
Two

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