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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea

rotameter
Venturimeter
pitot tube
hot wire anemometer

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Hydraulics and Fluid Mechanics in ME
The maximum discharge over a broad crested weir is

0.384 Cd × L × H3/2
1.71 Cd × L × H3/2
0.384 Cd × L × H1/2
1.71 Cd × L × H1/2

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Hydraulics and Fluid Mechanics in ME
Choose the correct relationship

kinematicviscosity = dynamicviscosity x density
dynamicviscosity = kinematicviscosity x density
gravity = specific gravity x density
specific gravity = gravity x density

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Speed and head of water
Speed and power developed
Discharge and power developed
Speed, power developed and head of water

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Hydraulics and Fluid Mechanics in ME
The stability of a dam is checked for

Sliding of the wall or dam
All of these
Tension at the base
Overturning of the wall or dam

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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)

8μvl/wd²
16μvl/wd²
32μvl/wd²
4μvl/wd²

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