Gate
Exam
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A Francis turbine is used when the available head of water is
A. 0 to 25 m
B. 25 m to 250 m
C. above 250 m
D. none of these
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Gate Other Question
When the speed of the pump increases, its net positive suction head (NPSH) requirement decreases.
A. Agree
B. Disagree
The specific speed from 160 to 500 r.p.m. of a centrifugal pump indicates that the pump is
A. slow speed with radial flow at outlet
B. medium speed with radial flow at outlet
C. high speed with radial flow at outlet
D. high speed with axial flow at outlet