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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

atmospheric pressure
surface tension forces
air resistance
viscosity

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Hydraulics and Fluid Mechanics in ME
The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to

1/2 × breadth
1/2 × depth
1/2 × sloping side
1/4 × (depth + breadth)

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Hydraulics and Fluid Mechanics in ME
The height of a water column equivalent to a pressure of 0.15 MPa is

15.3 m
25.3 m
35.3 m
45.3 m

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Hydraulics and Fluid Mechanics in ME
Density of water is maximum at

4°C
0°K
100°C
0°C

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

viscosity
cohesion
adhesion
surface tension

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Hydraulics and Fluid Mechanics in ME
The impeller of a centrifugal pump may have

Volute casing
Any one of these
Vortex casing
Volute casing with guide blades

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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