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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

cohesion
surface tension
viscosity
adhesion

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Hydraulics and Fluid Mechanics in ME
In a lock-gate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock)

2p/sinα
2p/sin (α/2)
p/sinα
p/2sinα

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Hydraulics and Fluid Mechanics in ME
Which of the following is the unit of kinematic viscosity

stoke
poise
faraday
pascal

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Hydraulics and Fluid Mechanics in ME
The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)

32μvl/wd²
16μvl/wd²
4μvl/wd²
8μvl/wd²

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Hydraulics and Fluid Mechanics in ME
The maximum efficiency of transmission through a pipe is

0.567
0.5
0.7666
0.6667

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

Does not change
None of these
Decreases
Increases

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