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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.

Equal to
More than
None of these
Less than

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Hydraulics and Fluid Mechanics in ME
The discharge in an open channel corresponding to critical depth is

Minimum
None of these
Maximum
Zero

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Hydraulics and Fluid Mechanics in ME
The fluid forces considered in the Navier Stokes equation are

gravity, viscous and turbulent
pressure, viscous and turbulent
gravity, pressure and viscous
gravity, pressure and turbulent

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Hydraulics and Fluid Mechanics in ME
The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.)

(2 L.A.N)/60
(L.A.N)/60
L.A.N
2 L.A.N

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Hydraulics and Fluid Mechanics in ME
Center of buoyancy is the

center of pressure of displaced volume
e.g. of floating body
centroid of the displaced volume of fluid
does not exist

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Hydraulics and Fluid Mechanics in ME
The ratio of absolute viscosity to mass density is known as

viscosity index
coefficient of viscosity
kinematic viscosity
specific viscosity

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