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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of bulk modulus of a fluid is required to determine

Froude's number
Euler's number
Reynold's number
Mach number

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Hydraulics and Fluid Mechanics in ME
According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed)

C × √(m × i)
AC × √(m × i)
A × √(m × i)
mi × √(A × C)

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Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

550 watts
735 watts
75 watts
102 watts

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Hydraulics and Fluid Mechanics in ME
Cavitation is caused by

weak material
high pressure
low pressure
high velocity

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the liquid enters the pump

At the bottom
From sides
At the top
At the canter

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Hydraulics and Fluid Mechanics in ME
The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

Twice the breadth
Half the breadth
Twice the depth
Half the depth

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