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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
By compounding the expansion of steam in two or more cylinders, the length of stroke

None of these
Increases
Decreases
Does not change

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Steam Boilers, Engines, Nozzles and Turbines
By compounding the expansion of steam in two or more cylinders, the ratio of expansion

Increases
Does not change
None of these
Decreases

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Steam Boilers, Engines, Nozzles and Turbines
With increase in load, radiant superheater has

Drooping characteristic
Linear characteristic
Flat characteristic
Rising characteristic

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Steam Boilers, Engines, Nozzles and Turbines
The efficiency of reaction turbine is maximum when (where α = Angle made by the absolute velocity ‘V’ at inlet)

Vb = V² cos α
Vb = 0.5 V cosα
Vb = V cos α
Vb = 0.5 V² cosα

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

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

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Steam Boilers, Engines, Nozzles and Turbines
Hygrometry deals with the

Hygroscopic substances
Pressure of air
Water vapor in air
Temperature of air

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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