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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

Stream line
Path line
Potential line
Steak line

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Hydraulics and Fluid Mechanics in ME
Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as

Lift
Drag
Stagnation pressure
Bulk modulus

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Hydraulics and Fluid Mechanics in ME
A flow through an expanding tube at constant rate is called

Steady uniform flow
Steady non-uniform flow
Unsteady non-uniform flow
Unsteady uniform flow

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

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

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Hydraulics and Fluid Mechanics in ME
When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is

1.84(L - 0.1nH)H3/2
1.84(L - nH)H2
1.84(L - nH)H3
1.84(L - 0.1nH)H5/2

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Hydraulics and Fluid Mechanics in ME
The speed of sound in a ideal gas varies directly as its

temperature
absolute temperature
density
modulus of elasticity

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