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HYDRAULICS AND FLUID MECHANICS IN ME

Hydraulics and Fluid Mechanics in ME
Euler’s dimensionless number relates the following

viscous force and inertial force
pressure force and inertial force
inertial force and gravity
viscous force and buoyancy force

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Hydraulics and Fluid Mechanics in ME
A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be

None of these
1 m
10m
100m

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Hydraulics and Fluid Mechanics in ME
The wake

always occurs before a separation point
None of these
always occurs after a separation point
is a region of high pressure intensity

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Hydraulics and Fluid Mechanics in ME
In a forced vortex, the velocity of flow everywhere within the fluid is

non-zero finite
zero
maximum
minimum

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Hydraulics and Fluid Mechanics in ME
The units of kinematic viscosity are

metres² per sec
kg sec/meter
newton-sec per meter
newton-sec per meter

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