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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Blading efficiency is also known as

Diagram efficiency
None of these
Nozzle efficiency
Stage efficiency

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Steam Boilers, Engines, Nozzles and Turbines
The economiser is used in boilers to

Extract heat from the exhaust flue gases
Economize on fuel
Increase flue gas temperature
Increase thermal efficiency of boiler

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Steam Boilers, Engines, Nozzles and Turbines
The pressure velocity compounded impulse turbine allows a bigger pressure drop and hence __________ numbers of stages are required.

Equal
None of the listed here
More
Less

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Steam Boilers, Engines, Nozzles and Turbines
The biggest size of thermal power unit operating in India is

500 MW
60 MW
30 MW
100 MW

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Steam Boilers, Engines, Nozzles and Turbines
For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.

Four times
Twice
Equal to
Three times

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Steam Boilers, Engines, Nozzles and Turbines
Steam turbines are used for

Large marine propulsion
All of these
Direct drive of fans, compressors, pumps
Electric power generation

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