The specific speed of turbine is defined as the speed of a unit
A. Of such a size that it delivers unit discharge at unit head
B. Of such a size that it delivers unit discharge at unit power
C. Of such a size that it requires unit power per unit head
D. Of such a size that it produces unit horse power with unit head
Answer: Option D

Lot of questions are found with wrong answers.
right answer is C (exam veda please correct it fast) Of such a size that it requires unit power per unit head