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Steam Boilers, Engines, Nozzles and Turbines

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

Condenser efficiency
Boiler efficiency
Vacuum efficiency
Nozzle efficiency

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Steam Boilers, Engines, Nozzles and Turbines
A steam nozzle converts

Heat energy of steam into kinetic energy
Potential energy into heat energy of steam
Kinetic energy into heat energy of steam
Heat energy of steam into potential energy

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Steam Boilers, Engines, Nozzles and Turbines
A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called

Stop valve
Superheater
Blow off cock
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The discharge is __________ at critical pressure.

Zero
None of these
Minimum
Maximum

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Steam Boilers, Engines, Nozzles and Turbines
In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the condenser pressure.

Higher than
Lower than
None of these
Equal to

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Steam Boilers, Engines, Nozzles and Turbines
The efficiency of steam turbines may be improved by

Reheating of steam
Any one of these
Regenerative feed heating
Binary vapor plant

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