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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for 0 to 25 m head of water?

None of these
Kaplan turbine
Francis turbine
Pelton wheel

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Hydraulics and Fluid Mechanics in ME
The maximum efficiency of transmission through a pipe is

0.567
0.5
0.6667
0.7666

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Hydraulics and Fluid Mechanics in ME
The bulk modulus of elasticity

has the dimensions of 1/pressure
increases with pressure
is independent of pressure and viscosity
is large when fluid is more compressible

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

cohesion
adhesion
compressibility
viscosity

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Hydraulics and Fluid Mechanics in ME
The flow in which conditions do not change with time at any point, is known as

uniform flow
turbulent flow
steady flow
one dimensional flow

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Hydraulics and Fluid Mechanics in ME
The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)

wA/x
wA
wx
wAx

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