# Mechanical Engineering - Steam Nozzles and Turbines - Discussion

### Discussion :: Steam Nozzles and Turbines - Section 3 (Q.No.35)

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

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.