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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The liquid used in manometers should have

Low density
Low surface tension
High density
High surface tension

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Hydraulics and Fluid Mechanics in ME
The flow in which each liquid particle has a definite path and their paths do not cross each other is called

streamline flow
one dimensional flow
uniform flow
turbulent flow

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Hydraulics and Fluid Mechanics in ME
The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is

0.611 stoke
0.0611 stoke
0.0116 stoke
0.116 stoke

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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

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

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Hydraulics and Fluid Mechanics in ME
The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)

wh
w
w/h
h/w

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Hydraulics and Fluid Mechanics in ME
Dynamic similarity is said to exist between the model and the prototype, if both of them

Have identical velocities
Are identical in shape, but differ only in size
None of these
Are equal in size and shape

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