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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Poise is the unit of

viscosity
surface tension
capillarity
shear stress in fluids

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Hydraulics and Fluid Mechanics in ME
A fluid of kinematic viscosity 0.4 cm²/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be

1.5 m/sec
less than 1 m/sec
2 m/sec
1 m/sec

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Hydraulics and Fluid Mechanics in ME
Hydraulic accumulator is used for

Accumulating oil
Generally high pressures to operate hydraulic machines
Supplying large quantities of oil for very short duration
Supplying energy when main supply fails

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Hydraulics and Fluid Mechanics in ME
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

equal
less at low temperature and more at high temperature
less
more

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Hydraulics and Fluid Mechanics in ME
All the terms of energy in Bernoulli’s equation have dimension of

work
length
energy
mass

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Hydraulics and Fluid Mechanics in ME
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

Divide
None of these
Plus
Minus

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