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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Practical fluids

possess surface tension
are viscous
are compressible
possess all the above properties

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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

2.89 kN
8.29 kN
9.28 kN
28.9 kN

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Hydraulics and Fluid Mechanics in ME
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

21000
10000
2100
2700

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Hydraulics and Fluid Mechanics in ME
For centrifugal pump impeller, the maximum value of the vane exit angle is

10° to 15°
25° to 30°
15° to 20°
20° to 25°

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Hydraulics and Fluid Mechanics in ME
The velocity corresponding to Reynold number of 2000 is called

Sub-sonic velocity
Super-sonic velocity
Lower critical velocity
Higher critical velocity

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Hydraulics and Fluid Mechanics in ME
If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, then the kinematic viscosity of that fluid in stokes is

None of these
0.5
1
0.25

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