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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following manometer has highest sensitivity

micro-manometer with water
U-tube with mercury
U-tube with water
inclined U-tube

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Hydraulics and Fluid Mechanics in ME
A thick liquid like syrup has a ___ viscosity than a light liquid like water.

Greater
Same
Lesser
None of the listed here

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Hydraulics and Fluid Mechanics in ME
The variation in the volume of a liquid with the variation of pressure is called its

Viscosity
Capillarity
Surface tension
Compressibility

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Hydraulics and Fluid Mechanics in ME
The specific speed (Ns) of a centrifugal pump is given by

(N√Q)/H5/4
(N√Q)/H2/3
(N√Q)/H
(N√Q)/H3/4

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Hydraulics and Fluid Mechanics in ME
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is

0.848
0.392
0.488
0.884

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Hydraulics and Fluid Mechanics in ME
The jet ratio is defined as the ratio of the

Diameter of Pelton wheel to the diameter of jet
Velocity of jet to the velocity of Pelton wheel
Velocity of Pelton wheel to the velocity of jet
Diameter of jet to the diameter of Pelton wheel

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