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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Froude's number
Euler's number
Weber's number
Reynold's number

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Hydraulics and Fluid Mechanics in ME
The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)

w
w/h
h/w
wh

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Hydraulics and Fluid Mechanics in ME
For 450 m head of water, _________ shall be used.

Pelton wheel
Francis turbine
None of these
Kaplan turbine

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

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

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Hydraulics and Fluid Mechanics in ME
For pipes, laminar flow occurs when Reynolds number is

Less than 2000
More than 4000
Between 2000 and 4000
Less than 4000

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Hydraulics and Fluid Mechanics in ME
A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

Nozzle
Mouthpiece
Notch
Weir

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