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HYDRAULICS AND FLUID MECHANICS IN ME

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

inertial force and gravity
pressure force and inertial force
viscous force and inertial force
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
10m
1 m
100m

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Hydraulics and Fluid Mechanics in ME
The wake

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

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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
maximum
minimum
zero

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

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

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