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Hydraulics and Fluid Mechanics in ME

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

Weber's number
Reynold's number
Mach number
Froude's number

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Hydraulics and Fluid Mechanics in ME
A flow in which __________ force is dominating over the viscosity is called turbulent flow.

Surface tension
Elastic
Inertia
Viscous

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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
Sum
Product

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Hydraulics and Fluid Mechanics in ME
The height of a water column equivalent to a pressure of 0.15 MPa is

45.3 m
25.3 m
15.3 m
35.3 m

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Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

Nearly horizontal
First rise and then fall
Horizontal
Steep

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Hydraulics and Fluid Mechanics in ME
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is

0.884
0.488
0.848
0.392

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