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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
THEE HORIZONTAL COMPONENT OF BUOYANT FORCE IS

SAME AS BUOYANT FORCE
NEGLIGIBLE
ZERO
None of these

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Hydraulics & Fluid Mechanics
A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will

increase/decrease depending on depth of immersion
remain same
decrease
increase

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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

1 PA
91 PA
981 PA
9810 PA

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Hydraulics & Fluid Mechanics
The Prartdtl mixing length is

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

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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

300
675
337.5
600

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Hydraulics & Fluid Mechanics
Flow of water in a pipe about 3 meters in diameter can be measured by

rotameter
venturi
pitot tube
orifice plate

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