Which one of the following statements regarding an impulse turbine is correct?
(a) There is no pressure variation in flow over the buckets and the fluid fills the passageway between the buckets.
(b) There is no pressure variation in flow over the buckets and the fluid does not fill the passageways between the buckets.
(c)there is pressure drop in flow over the buckets and the fluid fills the passageways between the buckets
(d) There is pressure drop in flow over the buckets and the fluid does not fill the passageway between the buckets.