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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

Divide
Minus
Plus
None of these

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Hydraulics and Fluid Mechanics in ME
The speed ratio in case of Francis turbine varies from

0.4 to 0.5
0.15 to 0.3
1 to 1.5
0.6 to 0.9

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Hydraulics and Fluid Mechanics in ME
The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m², and V = Velocity of jet in m/s)

waV / g
waV / 2g
waV² / g
waV² / 2g

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called

cohesion
compressibility
viscosity
adhesion

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

0.392
0.688
0.492
0.848

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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
Lesser
Same
None of the listed here

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