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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit of surface tension is

N-m
N/m
N/m2
N/m3

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Hydraulics and Fluid Mechanics in ME
The pressure at a point in a fluid will not be same in all the directions when the fluid is

inviscous and moving
moving
viscous
viscous and moving.

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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. The saving in case of a double acting reciprocating pump is

0.392
0.884
0.488
0.848

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Hydraulics and Fluid Mechanics in ME
The specific speed from 160 to 500 r.p.m. of a centrifugal pump indicates that the pump is

Medium speed with radial flow at outlet
High speed with radial flow at outlet
Slow speed with radial flow at outlet
High speed with axial flow at outlet

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Hydraulics and Fluid Mechanics in ME
In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

Three-fourth
Two-third
One-third
Equal to

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

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

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