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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

viscosity
compressibility
cohesion
adhesion

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Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

735 watts
102 watts
550 watts
75 watts

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Hydraulics and Fluid Mechanics in ME
The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m², and V = Velocity of jet in m/s)

waV / g
waV / 2g
waV² / g
waV² / 2g

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Hydraulics and Fluid Mechanics in ME
A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called

None of these
Archimedes’s principle
Pascal’s law
D-Alembert’s principle

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Hydraulics and Fluid Mechanics in ME
The intensity of pressure on an immersed surface __________ with the increase in depth.

Decreases
None of these
Increases
Does not change

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Hydraulics and Fluid Mechanics in ME
The Bernoulli's equation is based on the assumption that

The velocity of flow is uniform across any cross-section of the pipe
No force except gravity acts on the fluid
There is no loss of energy of the liquid flowing
All of these

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