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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem

Venturimeter
All of these
Orifice plate
pitot tube

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

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

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Hydraulics and Fluid Mechanics in ME
The length of the divergent cone in a Venturimeter is __________ that of the convergent cone.

Double
Equal to
Five to six times
Three to four times

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Hydraulics and Fluid Mechanics in ME
For laminar flow in circular pipes, the Darcy’s friction factor f is equal to

32/ Re
64/ Re
None of these
16/Re

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Hydraulics and Fluid Mechanics in ME
The maximum discharge over a broad crested weir is

0.384 Cd × L × H1/2
1.71 Cd × L × H3/2
0.384 Cd × L × H3/2
1.71 Cd × L × H1/2

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Hydraulics and Fluid Mechanics in ME
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.

One-fourth
One-half
Equal to
One-third

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