Consider the following statements in connection with hydraulic turbines:
1. The Kaplan turbine is a radial flow turbine in which the guide vane angles as well as the runner vane angles are adjustable.
2. Francis and Kaplan turbines are provided with
runner to tailwater to increase the gross head across the turbine.
3. The parts of turbines susceptible to cavitation are the guide vanes and runner vanes drastically reducing the turbine efficiency.
4. The specific speed of 4-jet Pelton turbine will be 28 if the specific speed of a single-jet Pelton turbines is 14 .
Which of the above statements are correct?

Question

Examsnet · Accepted Answer

Correct Answer is : 2 and 3 only

UPSC ESE 2017 Civil Engineering Paper