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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

H/3
3H/4
H/2
2H/3

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Hydraulics and Fluid Mechanics in ME
The cavitation in reaction turbines is avoided, to a great extent by

Using stainless steel runner of the turbine
Installing the turbine below the tail race level
Providing highly polished blades to the runner
All of these

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Hydraulics and Fluid Mechanics in ME
A fluid whose viscosity does not change with the rate of deformation or shear strain is known as

Real fluid
Non-Newtonian fluid
Ideal fluid
Newtonian fluid

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Hydraulics and Fluid Mechanics in ME
A hydraulic intensifier normally consists of

Two cylinders, two rams and a storage device
Two coaxial rams and two cylinders
A cylinder and a ram
A cylinder, a piston, storage tank and control valve

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Hydraulics and Fluid Mechanics in ME
According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain.

Directly proportional
Inversely proportional
Equal to
None of these

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to

Buoyancy
Equilibrium of a floating body
Bernoulli’s theorem
Archimedes’ principle

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