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Hydraulics & Fluid Mechanics

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

Pirani Gauge
ionisastion gauge
Bourdon tube
Micro-manometer

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Hydraulics & Fluid Mechanics
In a Sutro weir, the discharge is proportional to (where H is head)

H
H5/2
H1/2
H3/2

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Hydraulics & Fluid Mechanics
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than

6.4 m above the hydraulic gradient
5.0 above the hydraulic gradient
2.4 m above the hydraulic gradient
10.0 m above the hydraulic gradient

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Hydraulics & Fluid Mechanics
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called

osmosis
co-efficient of viscosity
viscosity
surface tension

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Hydraulics & Fluid Mechanics
Coefficient of velocity for Borda’s mouth piece running full is

0.707
0.855
0.611
1.00

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Hydraulics & Fluid Mechanics
The Prartdtl mixing length is

independent of shear stress
None of these
zero at the pipe wall
maximum at the pipe wall

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MORE MCQ ON Hydraulics & Fluid Mechanics

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