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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For very great pressures, viscosity of moss gases and liquids

remains same
increases
shows erratic behaviour
decreases

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Hydraulics and Fluid Mechanics in ME
Indicator diagram of a reciprocating pump is a graph between

Flow vs. swept volume
Pressure vs. speed
Pressure in cylinder vs. swept volume
Flow vs. speed

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

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Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a Piezometer tube is in

Head of liquid
N/mm2
All of these
N/m2

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Hydraulics and Fluid Mechanics in ME
Medium specific speed of a pump implies it is

Any one of the above
Centrifugal pump
Axial flow pump
Mixed flow pump

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called

reaction
upthrust
metacentre
buoyancy

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