Mechanical Engineering - Steam Nozzles and Turbines - Discussion

35. 

For a Parson's reaction turbine, if α1 and α2 are fixed blade angles at inlet and exit respectively and β1 and β2 are the moving blade angles at entrance and exit respectively, then

[A]. α1 = α2 and β1 = β2
[B]. α1 = β1 and α2 = β2
[C]. α1 < β1 and α2 > β2
[D]. α1 = β2 and β1 = α2

Answer: Option D

Explanation:

No answer description available for this question.

Nab said: (Sep 23, 2016)  
According to PK Nag Book, the answer is option D.

Anjali said: (May 19, 2017)  
Yes, option D is right. I also agree.

Waseem said: (Jul 16, 2017)  
D is the right answer.

Veerendar said: (Aug 11, 2017)  
Yes. Option D is correct.

Mahesh said: (Oct 4, 2018)  
I think it is B.

Ref: R S Khurmi.

Rahul said: (Feb 18, 2019)  
The correct answer is B.

Ref: RS Khurmi.

Yash Rajput said: (Mar 12, 2019)  
Please explain the correct answer.

Praveen said: (Jul 2, 2019)  
Answer is B.

Naveen said: (Aug 19, 2019)  
Answer D is correct as per the combined velocity triangle diagram of Parson's turbine.

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