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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
According to equation of continuity,

a1v1 = a2v2
w1a1 = w2a2
w1v1 = w2v2
a1/v1 = a2/v2

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Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Engler
Red wood
Orsat
Say bolt

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Hydraulics and Fluid Mechanics in ME
Center of buoyancy is the

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

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Hydraulics and Fluid Mechanics in ME
The pressure of liquid at throat in a Venturimeter is __________ than that at inlet.

None of these
Higher
Same
Lower

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Hydraulics and Fluid Mechanics in ME
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

The area is vertical
All of these
The area is inclined
The area is horizontal

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