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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A binary vapor plant consists of

Mercury boiler
All of the listed here
Steam turbine
Steam condenser

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Steam Boilers, Engines, Nozzles and Turbines
In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.

Equal to
More than
None of the listed here
Less than

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Steam Boilers, Engines, Nozzles and Turbines
An air preheater

Increases the efficiency of the boiler
All of these
Enables low grade fuel to be burnt
Increases evaporative capacity of the boiler

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Steam Boilers, Engines, Nozzles and Turbines
In a boiler, the heat is lost

To steam formed by combustion of hydrogen per kg of fuel
All of these
To dry flue gases
In moisture present in the fuel

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the volume at cut-off to the swept volume is called

Cut-off ratio
Clearance ratio
Expansion ratio
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

Zero
Minimum
Maximum
None of these

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