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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Dimensions of surface tension are

ML°T
ML°T⁻²
ML²T²
ML r²

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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

0.884
0.392
0.848
0.488

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Hydraulics and Fluid Mechanics in ME
The two important forces for a floating body are

buoyancy, gravity
inertial, gravity
buoyancy, inertial
buoyancy, pressure

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Hydraulics and Fluid Mechanics in ME
The wake

None of these
is a region of high pressure intensity
always occurs after a separation point
always occurs before a separation point

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Hydraulics and Fluid Mechanics in ME
During the opening of a valve in a pipe line, the flow is

Unsteady
Steady
Uniform
Laminar

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Hydraulics and Fluid Mechanics in ME
The flow rate in gear pump

More or less remains constant with increase in pressure
Unpredictable
Increases with increase in pressure
Decreases with increase in pressure

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