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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the liquids with rise in temperature

Increases
Decreases
Unpredictable
Remain unaffected

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

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Hydraulics and Fluid Mechanics in ME
The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is

200 kg/m3
600 kg/m3
800 kg/m3
400 kg/m3

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Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Engler
Orsat
Say bolt
Red wood

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

dsscharge
velocity
pressure
flow

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Hydraulics and Fluid Mechanics in ME
The total energy line lies over the hydraulic gradient line by an amount equal to the

Pressure head
Pressure head - velocity head
Pressure head + velocity head
Velocity head

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