question_answer

Consider the following turbines/wheels:

1. Francis turbine

2. Pelton wheel with two or more jets

3. Pelton wheel with a single jet

4. Kaplan turbine.

The correct sequence of these turbines/wheels in increasing order of their specific speeds is:

A) 2, 3, 1, 4                      

B) 3, 2, 1, 4

C) 2, 3, 4, 1                      

D) 3, 2, 4, 1