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Hydraulics & Fluid Mechanics

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

0.86
0.95
1.01
0.611

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Hydraulics & Fluid Mechanics
A perfect gas

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

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

H
H1/2
H5/2
H3/2

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Hydraulics & Fluid Mechanics
The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to

981 PA
91 PA
1 PA
9810 PA

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Hydraulics & Fluid Mechanics
Specific weight of sea water is more that of pure water because it contains

suspended matter
dissolved salt
All of these
dissolved air

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Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific weight
specific speed
specific volume
specific gravity

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