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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The velocity of jet of water traveling out of opening in a tank filled with water is proportional to

h/2
Head of water (h)
V/T
h²

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Hydraulics and Fluid Mechanics in ME
Dimensions of surface tension are

ML r²
ML°T
ML²T²
ML°T⁻²

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Hydraulics and Fluid Mechanics in ME
Centrifugal pump is started with its delivery valve

Irrespective of any position
Kept fully closed
Kept 50% open
Kept fully open

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Hydraulics and Fluid Mechanics in ME
Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width of impeller at inlet, and Vf = Velocity of flow at inlet)

Q = π.D.bf.V
Q = D.b.Vf
Q = π.b.Vf
Q = π.D.Vf

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Hydraulics and Fluid Mechanics in ME
A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is

8.29 kN
2.89 kN
28.9 kN
9.28 kN

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Hydraulics and Fluid Mechanics in ME
Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is

less than d
greater than 2d
between d and 1.5 d
between 1.5 d and 2d

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