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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A point, in a compressible flow where the velocity of fluid is zero, is called

Stagnation point
Critical point
None of the listed here
Vena contracta

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to

Equilibrium of a floating body
Archimedes’ principle
Buoyancy
Bernoulli’s theorem

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Hydraulics and Fluid Mechanics in ME
For starting an axial flow pump, its delivery valve should be

Depends on starting condition and flow desired
Could be either open or closed
Open
Closed

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Hydraulics and Fluid Mechanics in ME
The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

Potential line
Path line
Stream line
Steak line

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Hydraulics and Fluid Mechanics in ME
When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is

1.84(L - 0.1nH)H3/2
1.84(L - nH)H2
1.84(L - 0.1nH)H5/2
1.84(L - nH)H3

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Hydraulics and Fluid Mechanics in ME
Reynold's number is the ratio of the inertia force to the

Elastic force
Viscous force
Gravity force
Surface tension force

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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