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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The total energy line lies over the hydraulic gradient line by an amount equal to the

Pressure head
Pressure head - velocity head
Velocity head
Pressure head + velocity head

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Hydraulics and Fluid Mechanics in ME
The value of mass density in kgsecVm4 for water at 0°C is

100
1000
1
101.9

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Hydraulics and Fluid Mechanics in ME
Mercury does not wet glass. This is due to property of liquid known as

adhesion
viscosity
cohesion
surface tension

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Hydraulics and Fluid Mechanics in ME
A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm² and a volume of 0.039 m3 at 150 kg/cm². The bulk modulus of elasticity of liquid is

40 × 10⁶ kg/cm²
4000 kg/cm²
40 × 10⁵ kg/cm²
400 kg/cm²

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Hydraulics and Fluid Mechanics in ME
At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be

Minimum
Could be any value
Maximum
Zero

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Hydraulics and Fluid Mechanics in ME
The Newton's law of resistance is based on the assumption that the

All of these
Space around the body is completely filled with the fluid
Planes of the body are completely smooth
Fluid particles do not exert any influence on one another

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