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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

Horizontal
Steep
Nearly horizontal
First rise and then fall

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

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

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Hydraulics and Fluid Mechanics in ME
The total pressure on the top of a closed cylindrical vessel completely filled up with a liquid is

Inversely proportional to (radius)4
Directly proportional to (radius)2
Inversely proportional to (radius)2
Directly proportional to (radius)4

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

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Hydraulics and Fluid Mechanics in ME
The pressure at a point 4 m below the free surface of water is

19.24 kPa
49.24 kPa
29.24 kPa
39.24 kPa

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Hydraulics and Fluid Mechanics in ME
The intensity of pressure at any point, in a liquid, is __________ to the depth of liquid from the surface.

Equal
Inversely proportional
None of these
Directly proportional

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