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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a straight line, is called __________ dimensional flow.

One
Four
Two
Three

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Hydraulics and Fluid Mechanics in ME
When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is

1.84(L - 0.1nH)H3/2
1.84(L - nH)H3
1.84(L - 0.1nH)H5/2
1.84(L - nH)H2

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Hydraulics and Fluid Mechanics in ME
The pressure at a point in a fluid will not be same in all the directions when the fluid is

viscous
inviscous and moving
viscous and moving.
moving

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

Pelton wheel
Kaplan turbine
Francis turbine
None of these

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure at sea level is

760 mm of mercury
10.3 m of water
103 kN/m2
All of these

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to single acting reciprocating pump is of the order of

39.2%
68.8%
84.8%
49.2%

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