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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the newtoneon fluid is

linear
hyperbolic
inverse type
parabolic

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantities are same

Length and diameter
Friction loss and flow
Flow and length
Friction factor and diameter

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Hydraulics and Fluid Mechanics in ME
Low specific speed of a pump implies it is

None of these
Mixed flow pump
Axial flow pump
Centrifugal pump

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Hydraulics and Fluid Mechanics in ME
In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be

Four times
Eight times
Sixteen times
Double

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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)

w/h
h/w
w
wh

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Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

0.417 H5/2
1.417 H5/2
4.171 H5/2
7.141 H5/2

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