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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Which of the following instrument can be used for measuring speed of an aeroplane

pitot tube
Orifice plate
Venturimeter
rotameter

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Hydraulics & Fluid Mechanics
A perfect gas

is incompressible
None of these
is of theoretical interest
has constant viscosity

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Hydraulics & Fluid Mechanics
For measuring flow by a venturimeter, if should be installed in

vertical line
in any direction and in any location.
horizontal line
inclined line with upward flow

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Hydraulics & Fluid Mechanics
The resultant of all normal pressures acts

vertically upwards
at center of pressure
at metacentre
at e.g. of body

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Hydraulics & Fluid Mechanics
The region between the separation streamline and the boundary surface of the solid body is known as

boundary layer
wake
lift
drag

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Hydraulics & Fluid Mechanics
The discharge over a broad crested weir is maximum when the depth of flow is (where H is the available head)

2 H/5
H/3
H/2
2 H/3

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