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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

adhesion
surface tension
cohesion
viscosity

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Hydraulics and Fluid Mechanics in ME
The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

0.67 times
0.95 times
0.81 times
0.34 times

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Hydraulics and Fluid Mechanics in ME
The continuity equation is connected with

Compressibility of fluids
Conservation of mass
Steady/unsteady flow
Open channel/pipe flow

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Hydraulics and Fluid Mechanics in ME
A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be

None of these
10m
100m
1 m

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant weight of air or gas, the speed, capacity and pressure vary

Inversely as density
As square of density
Inversely as square root of density
Directly as the air or gas density

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Hydraulics and Fluid Mechanics in ME
In steady flow of a fluid, the total accele ration of any fluid particle

can be zero
is independent of coordinates
is always zero
is never zero

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