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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The density of water is 1000 kg/m3 at

0°K
0°C
4°C
20°C

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

0.611
0.86
0.95
1.01

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

H
H1/2
H3/2
H5/2

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Hydraulics & Fluid Mechanics
For a sphere of radius 15 cm moving with a uniform velocity of 2 m/sec through a liquid of specific gravity 0.9 and dynamic viscosity 0.8 poise, the Reynolds number will be

600
675
337.5
300

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Hydraulics & Fluid Mechanics
Separation of flow occurs when

the pressure intensity reaches a minimum
All of these
the boundary layer comes to rest
the cross-section of a channel is reduced

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

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

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