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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine ___ with the increase in unit speed.

Remain same
None of the listed here
Increases
Decreases

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Hydraulics and Fluid Mechanics in ME
The rise or depression of liquid in a tube due to surface tension wim increase in size of tube will

decrease
remain unaffected
may increase or decrease depending on the characteristics of liquid
increase

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is preferred for flood control and irrigation applications?

Axial flow pump
Mixed flow pump
Reciprocating pump
Centrifugal pump

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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

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

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Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

1.417 H5/2
7.141 H5/2
0.417 H5/2
4.171 H5/2

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

adhesion
cohesion
surface tension
viscosity

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