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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A fluid which obeys the Newton's law of viscosity is termed as

Non-Newtonian fluid
Real fluid
Newtonian fluid
Ideal fluid

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Hydraulics and Fluid Mechanics in ME
When the Mach number is less than unity, the flow is called

Hyper-sonic flow
Super-sonic flow
Sub-sonic flow
Sonic flow

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Hydraulics and Fluid Mechanics in ME
The water in a jet propelled boat is drawn through the openings facing the direction of motion of the boat. The efficiency of propulsion is given by

2V/(vr + v)
2V/(vr - v)
V/(vr - v)
V/(vr + v)

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Hydraulics and Fluid Mechanics in ME
The sheet of water flowing over a notch or a weir is known as

None of these
Nappe or vein
Orifice
Sill or crest

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

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

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Hydraulics and Fluid Mechanics in ME
The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)

wH/2
wH2/4
wH
wH2/2

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