Steam Nozzles and Turbines MCQ with Answers

Steam Nozzles and Turbines MCQ with Answers

111) In a reaction turbine when the degree of reaction is zero, then there is

Answer is:

no heat drop in moving blades

112) The effect of friction in the nozzle __________ dryness fraction of steam.

Answer is:

increases

113) In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30 Degree. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

Answer is:

640/3 m/s

114) In pressure compounding of an impulse turbine, the total pressure drop of the steam does not take place in the first nozzle ring, but is divided equally among all the nozzle rings.

Answer is:

Agree

115) When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.

Answer is:

decreases

20
21
22
23
24
25
26