Question

The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency)
A. ηS = ηB x ηN
B. ηS = ηB/ηN
C. ηS = ηN/ηB
D. none of these

Answer 1

nS=nB×nN option (a) hope it helped................

Answer 2

◆Ekansh Nimbalkar◆
option A is the correct answer.........