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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The variation in the volume of a liquid with the variation of pressure is called its

Viscosity
Capillarity
Surface tension
Compressibility

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is greater than the critical depth, the flow is called

Tranquil flow
Turbulent flow
Torrential flow
Critical flow

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Hydraulics and Fluid Mechanics in ME
A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

14π R1/2/15Cd × a √(2g)
14π R5/2/15Cd × a √(2g)
14π R3/2/15Cd × a √(2g)
14π R7/2/15Cd × a √(2g)

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Hydraulics and Fluid Mechanics in ME
The coefficient of discharge for an external mouthpiece is

0.375
0.5
0.855
0.707

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Hydraulics and Fluid Mechanics in ME
The weight per unit volume of a liquid at a standard temperature and pressure is called

Mass density
None of these
Specific weight
Specific gravity

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Hydraulics and Fluid Mechanics in ME
The volumetric change of the fluid caused by a resistance is known as

Compressibility
Volumetric index
Volumetric strain
Adhesion

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