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Steam Boilers, Engines, Nozzles and Turbines

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
Less
More
None of the listed here

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Steam Boilers, Engines, Nozzles and Turbines
A device used to increase the temperature of saturated steam without raising its pressure, is called

Superheater
Fusible plug
Blow off cock
Stop valve

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Steam Boilers, Engines, Nozzles and Turbines
Thermal efficiency of a thermal power plant is of the order of

0.15
0.3
0.45
0.2

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is required for a steam condensing plant?

All of these
Air extraction pump
Condensate pump
Condenser

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure ratio for initially wet steam is

0.546
0.582
0.601
0.577

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Steam Boilers, Engines, Nozzles and Turbines
An economiser is generally placed between

Air preheater and chimney
Last superheater or reheater and air preheater
Induced draft fan and forced draft fan
None of these

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