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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The flow which neglects changes in a transverse direction is known as

steady flow
turbulent flow
uniform flow
one dimensional flow

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Hydraulics & Fluid Mechanics
THE THEORETICAL VALUE OF COEFFICIENT OF CONTRACTION OF A SHARP EDGED ORIFICE IS

0.95
1.01
0.611
0.86

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Hydraulics & Fluid Mechanics
The line of action of the buoyant force acts through the

centroid of the volume of fluid vertically above the body
centriod of the displaced volume of fluid
center of the volume of floating body
center of gravity of any submerged body

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Hydraulics & Fluid Mechanics
SURFACE TENSION HAS THE UNITS OF

NEWTONS
NETON/M
NEWTONS/M
NEW TONS/M

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Hydraulics & Fluid Mechanics
According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

the weight of the body
less than the weight of the body
weight of the fluid displaced by the body
more than the weight of the body

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Hydraulics & Fluid Mechanics
The units of viscosity are

metre2/se
newton-sec/metre
kg sec/metre
newton-sec/metre2

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