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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Desecration of feed water is carried out because it reduces

Heat transfer coefficient
pH value of water
Cavitation of boiler feed pumps
Corrosion caused by oxygen

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Steam Boilers, Engines, Nozzles and Turbines
In an impulse turbine, steam expands

None of these
Wholly in nozzle
Wholly in blades
Partly in the nozzle and partly in blades

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

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

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Steam Boilers, Engines, Nozzles and Turbines
When steam after doing work in the cylinder passes into a condenser, the engine is said to be a

Condensing steam engine
Slow speed engine
Vertical steam engine
Non-condensing steam engine

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Steam Boilers, Engines, Nozzles and Turbines
Expanding steam to a very low pressure (high vacuum) in steam engines is

Desirable
Essential
Uneconomical
Economical

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Steam Boilers, Engines, Nozzles and Turbines
Rateau turbine is

Velocity compounded turbine
Simple reaction turbine
Pressure-velocity compounded turbine
Pressure compounded turbine

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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