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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The critical pressure ratio for initially superheated steam is __________ as compared to initially dry saturated steam.

More
None of these
Less
Same

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of fire tubes in Cochran boiler is of the order of

8 cm
2 cm
6 cm
12 cm

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

Steam condenser
All of the listed here
Steam turbine
Mercury boiler

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Steam Boilers, Engines, Nozzles and Turbines
A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as

Impulse turbine
Low pressure turbine
Pass out turbine
Back pressure turbine

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Steam Boilers, Engines, Nozzles and Turbines
Parson's turbine is a

Impulse-reaction turbine
Simple impulse turbine
None of these
Simple reaction turbine

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Steam Boilers, Engines, Nozzles and Turbines
The artificial draught is produced by

Centrifugal fan
Chimney
Both (A) and (B)
Steam jet

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