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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

cohesion
surface tension
viscosity
adhesion

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Hydraulics and Fluid Mechanics in ME
Motion of a liquid in a volute casing of a centrifugal pump is an example of

Spiral vortex flow
Forced spiral vortex flow
Rotational flow
Radial

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Hydraulics and Fluid Mechanics in ME
The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta)

2g × √H
2gH
√(2gh)
H × √(2g)

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Hydraulics and Fluid Mechanics in ME
The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves in the direction of jet with a velocity v is

[wa (V - v)²]/2g
[wa (V - v²)]/g
[wa (V - v)]/g
[wa (V - v)]/2g

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Hydraulics and Fluid Mechanics in ME
According to Bazin's formula, the discharge over a rectangular weir is mL2g x H3/2 where m is equal to

0.405 + (H/0.003)
0.405 + (0.003/H)
0.003 + (H/0.405)
0.003 + (0.405/H)

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Hydraulics and Fluid Mechanics in ME
The static head of a centrifugal pump is equal to the _________ of suction head and delivery head.

Difference
None of these
Product
Sum

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