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Hydraulics & Fluid Mechanics

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

H3/2
H1/2
H
H5/2

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Hydraulics & Fluid Mechanics
The units of viscosity are

metre2/se
newton-sec/metre2
newton-sec/metre
kg sec/metre

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Hydraulics & Fluid Mechanics
In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is

50 M/SEC
22.5 M/SEC
33 M/SEC
40 M/SEC

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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

91 PA
1 PA
9810 PA
981 PA

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Hydraulics & Fluid Mechanics
For a floating body to be in equilibrium

All of these
a righting couple should be formed
center of buoyancy and e.g. must lie on same vertical plane
meta center should be above e.g.

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Hydraulics & Fluid Mechanics
If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is

between 1 and 100
160
200
less than 1

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