Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 1 (Q.No. 43)
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
Discussion:
12 comments Page 1 of 2.
Kanu said:
9 years ago
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
=500√10000/81^(5/4) = 205 which is nearby the speed of Francis turbine.
Turbine -------- Specific Speed
Pelton -------- 25
Keplon -------- 800
Francis -------- 75
Chandru M said:
8 years ago
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).
2. Medium-Specific Speed Turbine =50-250 (Ex : Francis).
3. High Specific Speed Turbine =More than 250 (Ex : Kaplan).
Neeraj Dogra said:
8 years ago
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.
2. Pelton wheel turbine (double jet) = 35-60.
3. Francis turbine = 60-300.
4. Kaplan turbine = >300.
Pushpa said:
2 years ago
Pelton turbine is the right answer.
The head is greater than 50v recommended for the pelton-type turbine.
The head is greater than 50v recommended for the pelton-type turbine.
Shub said:
7 years ago
Convert power hp into kilowatt.
Put in the formula.
10000/75 = 133.33kw.
Put in the formula.
10000/75 = 133.33kw.
Gopinath said:
9 years ago
What is the specific speed of turbine?
Wassed Ali said:
7 years ago
I think it would be a Francis turbine.
Rahul said:
9 years ago
Please explain the answer in detail.
Zen said:
9 years ago
Specific speed= N√Q /H^(3/4).
DHANABALAN said:
3 years ago
Francis Turbine is the right one.
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