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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The velocity corresponding to Reynold number of 2000 is called

Higher critical velocity
Super-sonic velocity
Lower critical velocity
Sub-sonic velocity

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Hydraulics and Fluid Mechanics in ME
The shear stress-strain graph for a Newtonian fluid is a

Elliptical
Parabolic curve
Hyperbolic curve
Straight line

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Hydraulics and Fluid Mechanics in ME
The power transmitted through the pipe is maximum when the head lost due to friction is equal to

Two-third of the total supply head
One-third of the total supply head
One-half of the total supply head
One-fourth of the total supply head

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Hydraulics and Fluid Mechanics in ME
A flow in which __________ force is dominating over the viscosity is called turbulent flow.

Viscous
Inertia
Elastic
Surface tension

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Hydraulics and Fluid Mechanics in ME
Center of buoyancy is the

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

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Hydraulics and Fluid Mechanics in ME
The speed ratio in case of Francis turbine varies from

1 to 1.5
0.4 to 0.5
0.6 to 0.9
0.15 to 0.3

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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