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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The units of viscosity are

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

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

0.86
0.611
0.95
1.01

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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

200
less than 1
160
between 1 and 100

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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

9810 PA
981 PA
1 PA
91 PA

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Hydraulics & Fluid Mechanics
The flow which neglects changes in a transverse direction is known as

one dimensional flow
uniform flow
steady flow
turbulent flow

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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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