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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

w/h
h/w
wh
h

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Hydraulics and Fluid Mechanics in ME
The discharge through a channel of rectangular section will be maximum, if

Its depth is twice the breadth
Its breadth is thrice the depth
Its breadth is twice the depth
Its depth is thrice the breadth

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Hydraulics and Fluid Mechanics in ME
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

The area is vertical
The area is inclined
The area is horizontal
All of these

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Hydraulics and Fluid Mechanics in ME
For manometer, a better liquid combination is one having

higher surface tension
surface tension is no criterion
lower surface tension
high density and viscosity

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

Twice the breadth
Half the depth
Twice the depth
Half the breadth

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Hydraulics and Fluid Mechanics in ME
Capillary action is due to the

Adhesion of the liquid molecules and the molecules on the surface of a solid
Surface tension
Cohesion of the liquid
All of the listed here

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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