Steam Nozzles and Turbines MCQ with Answers

Steam Nozzles and Turbines MCQ with Answers

116) In an ideal impulse turbine, the

Answer is:

relative velocity at the inlet of the moving blade is equal to that at the outlet

117) During flow through a nozzle, no heat is supplied or rejected by the steam.

Answer is:

Agree

118) In a reaction turbine, when steam flows through the moving blades,

Answer is:

pressure and velocity both decreases

119) In velocity compounding of an impulse turbine, the expansion of steam takes place in a nozzle or a set of nozzles from the boiler pressure to condenser pressure.

Answer is:

Right

120) The critical pressure ratio is given by (where p₁ = Initial pressure of steam, and p₂ = Pressure of steam at throat or critical pressure)

Answer is:

p₂/p₁

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