Gate Exam Category

The relation between hydraulic efficiency (ηh), mechanical efficiency (ηm) and overall efficiency (ηo) ) is

A. ηh = ηo x ηm
B. ηm = ηo x ηh
C. ηo = ηh x ηm
D. none of these

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Gate Other Question

In a Francis turbine runner, the number of blades are generally between

A. 2 to 4
B. 4 to 8
C. 8 to l6
D. 16 to 24

In a centrifugal pump, the water enters the impeller __________ and leaves the vanes axially.

A. axially
B. radially