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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a Piezometer tube is in

N/m2
All of these
N/mm2
Head of liquid

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Hydraulics and Fluid Mechanics in ME
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by

dQ/Q = 3 × (dH/H)
dQ/Q = 2 × (dH/H)
dQ/Q = 3/2 × (dH/H)
dQ/Q = 5/2 × (dH/H)

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Hydraulics and Fluid Mechanics in ME
Dynamic similarity is said to exist between the model and the prototype, if both of them

Are equal in size and shape
Are identical in shape, but differ only in size
None of these
Have identical velocities

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Hydraulics and Fluid Mechanics in ME
Pitot tube is used for measurement of

velocity
dsscharge
flow
pressure

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

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Hydraulics and Fluid Mechanics in ME
Fluid is a substance which offers no resistance to change of

Shape
Volume
Flow
Pressure

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