Mechanical Engineering - Steam Nozzles and Turbines - Discussion

Discussion Forum : Steam Nozzles and Turbines - Section 3 (Q.No. 20)
20.
In a reaction turbine, when steam flows through the moving blades,
pressure increases while velocity decreases
pressure decreases while velocity increases
pressure and velocity both decreases
pressure and velocity both increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

K.nani said:   4 years ago
No, C is correct answer. In reaction turbine, when steam flows through the (fixed blades) - pressure decreases while velocity increases, but in case of (Moving blades) pressure and velocity both decreases.
(1)

DATTA said:   5 years ago
B is the correct answer.

Rinkesh patel said:   8 years ago
No, C is the correct answer because of velocity decrease in the moving blade.

The blade of moving blade is not symmetric as in impulse turbine it is in aerofoil type, so when steam pass through moving blade c/s became slightly decreases so by giving momentum of steam the velocity decreases and also pressure will decreases.

Manoj said:   8 years ago
B is the correct answer.

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