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Hydraulics & Fluid Mechanics

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

rotameter
pitot tube
orifice plate
venturi

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Hydraulics & Fluid Mechanics
A fluid is said to be ideal, if it is

inviscous
incompressible
inviscous and incompressible
inviscous and compressible

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Hydraulics & Fluid Mechanics
The Prartdtl mixing length is

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

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Hydraulics & Fluid Mechanics
Two pipe systems are said to be equivalent when

length and diameter are same in two systems
head loss and discharge are same in two systems
friction factor and length are same in two systems
length of pipe and discharge are same in two systems

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Hydraulics & Fluid Mechanics
If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its

specific mass
specific gravity
specific density
specific weight

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Hydraulics & Fluid Mechanics
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than

6.4 m above the hydraulic gradient
5.0 above the hydraulic gradient
10.0 m above the hydraulic gradient
2.4 m above the hydraulic gradient

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