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Hydraulics and Fluid Mechanics in ME

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

hot wire anemometer
pitot tube
rotameter
Venturimeter

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Hydraulics and Fluid Mechanics in ME
The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

Equal to
Three fourth
One-half
Double

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant pressure, the speed capacity and power vary

Inversely as density
As square of density
Inversely as square root of density
Directly as the air or gas density

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Hydraulics and Fluid Mechanics in ME
The discharge over a triangular notch is

Inversely proportional to H5/2
Inversely proportional to H3/2
Directly proportional to H3/2
Directly proportional to H5/2

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

adhesion
cohesion
viscosity
compressibility

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

0.6667
0.7666
0.5
0.567

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