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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

center of gravity
water surface
center of buoyancy
center of pressure

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Hydraulics and Fluid Mechanics in ME
Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s, and ηo = Overall efficiency of the pump)

(w Hm Q) / ηo
(w Q) / (Hm × ηo)
(w Q ηo) / Hm
(w Hm) / (Q × ηo)

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Hydraulics and Fluid Mechanics in ME
Pitot tube is used for measurement of

velocity
dsscharge
pressure
flow

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Hydraulics and Fluid Mechanics in ME
The static head of a centrifugal pump is equal to the _________ of suction head and delivery head.

Product
Difference
None of these
Sum

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Hydraulics and Fluid Mechanics in ME
The impeller of a centrifugal pump may have

Any one of these
Volute casing
Vortex casing
Volute casing with guide blades

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Hydraulics and Fluid Mechanics in ME
The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H).

P/ H3/2
P/ H²
P/ H
P/ √H

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