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Steam Boilers, Engines, Nozzles and Turbines

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

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

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Steam Boilers, Engines, Nozzles and Turbines
Mechanical equivalent of heat for 1 kcal or Joule's equivalent is equal to

102 kg.m
421 kg.m
539 kg.m
421 kg.m

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Steam Boilers, Engines, Nozzles and Turbines
Efficiency of a thermal cycle increases by

Reheating of steam
Regeneration
Cooling of steam
Both (A) and (B)

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Steam Boilers, Engines, Nozzles and Turbines
In order to reduce the rotor speed of an impulse turbine, the method employed is

Velocity compounding
Pressure compounding
All of these
Pressure-velocity compounding

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Steam Boilers, Engines, Nozzles and Turbines
If the critical pressure ratio for steam is 0.546, then the steam is initially

None of these
Wet steam
Superheated steam
Dry saturated steam

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

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

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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