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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.

None of these
Equal to
Less than
More than

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Hydraulics and Fluid Mechanics in ME
In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 'θ'. Sensitivity of inclined tube to sensitivity of U-tube is equal to

1/Cosθ
Sinθ
1/Sinθ
Cos θ

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Hydraulics and Fluid Mechanics in ME
Stoke is the unit of

Dynamic viscosity in M. K. S. units
Dynamic viscosity in S. I. units
Kinematic viscosity in C. G. S. units
Kinematic viscosity in M. K. S. units

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Hydraulics and Fluid Mechanics in ME
Size of a venturimeter is specified by

throat diameter
angle of diverging section
both pipe diameter as well as throat diameter
pipe diameter

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Hydraulics and Fluid Mechanics in ME
For a body floating in a liquid the normal pressure exerted by the liquid acts at

metacentre
all points on the surface of the body
bottom surface of the body
e.g. of the body

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant speed and capacity, the pressure and power vary

Directly as the air or gas density
As square of density
Inversely as square root of density
Inversely as density

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