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Hydraulics and Fluid Mechanics in ME

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

Low surface tension
High surface tension
High density
Low density

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Hydraulics and Fluid Mechanics in ME
For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is

a function of Reynolds number and relative roughness
dependent only on Reynolds number
constant
dependent on relative roughness only

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Hydraulics and Fluid Mechanics in ME
Head developed by a centrifugal pump is

None of these
Proportional to speed of impeller
Proportional to diameter of impeller
Proportional to diameter and speed of impeller

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Hydraulics and Fluid Mechanics in ME
The value of mass density in kgsecVm4 for water at 0°C is

100
101.9
1000
1

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Hydraulics and Fluid Mechanics in ME
A large Reynold number is indication of

Highly turbulent flow
Steady flow
Laminar flow
Smooth and streamline flow

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

viscosity of the liquid
depth of immersion
mass of liquid displaced
pressure of the liquid displaced

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