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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
In a Sutro weir, the discharge is proportional to (where H is head)

H
H1/2
H3/2
H5/2

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Hydraulics & Fluid Mechanics
The Prartdtl mixing length is

None of these
independent of shear stress
zero at the pipe wall
maximum at the pipe wall

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Hydraulics & Fluid Mechanics
The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is

at the centroid of the submerged area
always below the centroid of the area
always above the centroid of the area
None of these

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Hydraulics & Fluid Mechanics
A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water ?

25 m/sec
10 m/sec
2 m/sec
50 m/sec

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Hydraulics & Fluid Mechanics
For measuring flow by a venturimeter, if should be installed in

in any direction and in any location.
vertical line
inclined line with upward flow
horizontal line

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Hydraulics & Fluid Mechanics
In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is

22.5 M/SEC
33 M/SEC
40 M/SEC
50 M/SEC

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