question_answer

Which one of the following pairs of formulae represents the specific speeds of turbine and pump respectively? (Notations have their usual meanings),

A) \[d\frac{N{{Q}^{1/2}}}{{{H}^{3/4}}}\] and \[\frac{N{{P}^{1/2}}}{{{H}^{5/4}}}\]

B) \[\frac{N{{Q}^{1/2}}}{{{H}^{3/4}}}\] and \[\frac{N{{P}^{1/2}}}{{{H}^{3/4}}}\]

C) \[\frac{N{{P}^{1/2}}}{{{H}^{5/4}}}\] and \[\frac{N{{Q}^{1/2}}}{{{H}^{5/4}}}\]

D) \[\frac{N{{P}^{1/2}}}{{{H}^{3/4}}}\] and \[\frac{N{{Q}^{1/2}}}{{{H}^{5/4}}}\]