Civil Engineering - UPSC Civil Service Exam Questions - Discussion

43. 

To generate 10, 000 hp under a head of 81 m while working at a speed of 500 rpirt, the turbine of choice would be

[A]. Pelton
[B]. Kaplan
[C]. Bulb
[D]. Francis

Answer: Option A

Explanation:

No answer description available for this question.

Gupt said: (Jul 31, 2016)  
Give the explanation.

Gopinath said: (Oct 28, 2016)  
What is the specific speed of turbine?

Rahul said: (Jan 4, 2017)  
Please explain the answer in detail.

Zen said: (Feb 17, 2017)  
Specific speed= N√Q /H^(3/4).

Kanu said: (Mar 7, 2017)  
Ns=N√P/H^(5/4).
=500√10000/81^(5/4) = 205 which is nearby the speed of Francis turbine.

Turbine -------- Specific Speed
Pelton -------- 25
Keplon -------- 800
Francis -------- 75

Neeraj Dogra said: (Apr 27, 2017)  
1. Pelton wheel turbine(single jet) = 10-35.
2. Pelton wheel turbine (double jet) = 35-60.
3. Francis turbine = 60-300.
4. Kaplan turbine = >300.

Gaurav said: (Apr 28, 2017)  
It will be Francis turbine.

Chandru M said: (Oct 11, 2017)  
1. Low Specific Speed Turbine = Less than 50 (Ex : Pelton Wheel).
2. Medium-Specific Speed Turbine =50-250 (Ex : Francis).
3. High Specific Speed Turbine =More than 250 (Ex : Kaplan).

Shub said: (Nov 16, 2018)  
Convert power hp into kilowatt.
Put in the formula.
10000/75 = 133.33kw.

Wassed Ali said: (Apr 8, 2019)  
I think it would be a Francis turbine.

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