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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as

Unit speed
None of these
Normal speed
Specific speed

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Hydraulics and Fluid Mechanics in ME
The two important forces for a floating body are

buoyancy, pressure
buoyancy, gravity
buoyancy, inertial
inertial, gravity

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Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a syphon, an air vessel is provided

at the summit
at the inlet
ay nay point between inlet and outlet
at the outlet

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Hydraulics and Fluid Mechanics in ME
A vessel of 4 m3 contains oil which weighs 30 kN. The specific weight of the oil is

4.5 kN/m3
10 kN/m3
6 kN/m3
7.5 kN/m3

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Hydraulics and Fluid Mechanics in ME
The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)

(2/3) Cd × b × √(2gH)
(2/3) Cd × b × √(2g) × H
(2/3) Cd × b × √(2g) × H3/2
(2/3) Cd × b × √(2g) × H2

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Hydraulics and Fluid Mechanics in ME
Center of buoyancy is the

does not exist
centroid of the displaced volume of fluid
e.g. of floating body
center of pressure of displaced volume

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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