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Steam Boilers, Engines, Nozzles and Turbines

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

Steam condenser
Mercury boiler
All of the listed here
Steam turbine

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Steam Boilers, Engines, Nozzles and Turbines
Multi-stage steam turbines are of the

Reaction type
All of these
Pressure compounded type
Velocity compounded type

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Steam Boilers, Engines, Nozzles and Turbines
When the nozzle operates with the maximum mass flow, the nozzle is said to be

Under-damping
Choked
Over-damping
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The reheat factor depends upon

Initial pressure and superheat
Turbine stage efficiency
Exit pressure
All of these

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Steam Boilers, Engines, Nozzles and Turbines
Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of

Higher effectiveness of boiler
Fouling of heat transfer surfaces
Raising of steam temperature
High calorific value coal being burnt

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Steam Boilers, Engines, Nozzles and Turbines
The average value of diagram factor lies between

0.8 to 1.2
0.5 to 0.65
0.65 to 0.9
0.2 to 0.5

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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