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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
An ideal flow of any fluid must satisfy

continuity equation
boundary layer theory
Pascal law
Newton’s law of viscosity

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Hydraulics and Fluid Mechanics in ME
Specific weight of water in S.I. units is equal to

10000 N/m3
9.81 xlO3 N/m3
9.81 xlO6 N/m3
1000 N/m3

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Hydraulics and Fluid Mechanics in ME
If the ratio's of the corresponding forces acting at corresponding points are equal, then the model and the prototype are said to have.

Kinematic similarity
Geometric similarity
Dynamic similarity
None of these

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Hydraulics and Fluid Mechanics in ME
The pressure at a point in a fluid will not be same in all the directions when the fluid is

inviscous and moving
viscous and moving.
moving
viscous

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Hydraulics and Fluid Mechanics in ME
The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)

w
wh
h/w
w/h

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Hydraulics and Fluid Mechanics in ME
An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be

12 kN/m2
4 kN/m2
14 kN/m2
10 kN/m2

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