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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A fluid which obeys the Newton's law of viscosity is termed as

Ideal fluid
Real fluid
Non-Newtonian fluid
Newtonian fluid

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Hydraulics and Fluid Mechanics in ME
A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension)

4wd/σ cosα
wd/4σ cosα
σ cosα/4wd
4σ cosα/wd

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Hydraulics and Fluid Mechanics in ME
The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)

0.375v²/2g
v²/2g
0.75v²/2g
0.5v²/2g

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Hydraulics and Fluid Mechanics in ME
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea

Venturimeter
hot wire anemometer
rotameter
pitot tube

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Hydraulics and Fluid Mechanics in ME
A flow is called sub-sonic, if the Mach number is

Between 1 and 6
More than 6
Less than unity
Unity

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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.

Inversely proportional
None of these
Equal
Directly proportional

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