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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

Less than
Equal to
None of these
More than

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Hydraulics and Fluid Mechanics in ME
Stream lines and path lines always coincide in case of

steady flow
uniform flow
laminar flow
turbulent flow

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Hydraulics and Fluid Mechanics in ME
The depth of center of pressure of an immersed surface, inclined at an angle 'θ' with the liquid surface lies at a distance equal to __________ the center of gravity.

IG sinθ/Ax̅ above
IG sin²θ/Ax̅ above
IG sin²θ/Ax̅ below
IG sinθ/Ax̅ below

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Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator is a device used to store _________ energy which may be supplied to a machine later on.

None of these
Pressure
Kinetic
Strain

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Hydraulics and Fluid Mechanics in ME
The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

Three fourth
One-half
Equal to
Double

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Hydraulics and Fluid Mechanics in ME
In an immersed body, center of pressure is

at the center of gravity
below be center of gravity
could be above or below e.g. depending on density of body and liquid
above the center of gravity

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