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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Center of buoyancy is the

e.g. of floating body
does not exist
center of pressure of displaced volume
centroid of the displaced volume of fluid

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Hydraulics and Fluid Mechanics in ME
The unit of dynamic viscosity in S.I. units is

Poise
N-m/s²
Stoke
N-s/m²

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Hydraulics and Fluid Mechanics in ME
The velocity at which the laminar flow stops, is known as

None of these
Higher critical velocity
Velocity of approach
Lower critical velocity

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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.

Double
Three fourth
Equal to
One-half

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Hydraulics and Fluid Mechanics in ME
The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

16/RN
64/RN
4/RN
1/RN

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Hydraulics and Fluid Mechanics in ME
Which of the following manometer has highest sensitivity

micro-manometer with water
U-tube with water
inclined U-tube
U-tube with mercury

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