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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Pressure of the order of 10''' torr can be measured by

Micro-manometer
Bourdon tube
ionisastion gauge
Pirani Gauge

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Hydraulics & Fluid Mechanics
Uniform flow occurs when

size and cross section change uniformly along length
the flow is streamline
size and shape of the cross section in a particular length remain constant
the flow is steady

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Hydraulics & Fluid Mechanics
Ay between two stream lines represents

head
discharge
velocity
pressure

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Hydraulics & Fluid Mechanics
The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid (where pi and p2 are mass densities.)

incompressible flow
frictionless flow
uniform flow
steady flow

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Hydraulics & Fluid Mechanics
The resultant of all normal pressures acts

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

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

0.611
0.95
1.01
0.86

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