A 20 cm centrifugal pump runs at 1400 rpm delivering 0.09m3/sec against a head of 45 m with an efficiency of 87%. What is its non-dimensional specific speed using rps as the relevant data component?

A 20 cm centrifugal pump runs at 1400 rpm delivering 0.09m3/sec agains

1.	A 20 cm centrifugal pump runs at 1400 rpm delivering 0.09m3/sec against a head of 45 m with an efficiency of 87%. What is its non-dimensional specific speed using rps as the relevant data component?
A.	0.482
B.	0.474
C.	0.466
D.	0.458
Answer» E.