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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The loss of pressure head in case of laminar flow is proportional to

(Velocity)2
(Velocity)3
Velocity
(Velocity)4

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Hydraulics and Fluid Mechanics in ME
The shear stress-strain graph for a Newtonian fluid is a

Elliptical
Hyperbolic curve
Straight line
Parabolic curve

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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.

Inversely proportional
None of these
Equal to
Directly proportional

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure with rise in altitude decreases

linearly
first slowly and then steeply
unpredictable
first steeply and then gradually

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Hydraulics and Fluid Mechanics in ME
The horizontal component of buoyant force is

Zero
Negligible
None of these
Same as buoyant force

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Hydraulics and Fluid Mechanics in ME
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. The saving in case of a double acting reciprocating pump is

0.392
0.848
0.884
0.488

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