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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If no resistance is encountered by displacement, such a substance is known as

Fluid
Gas
Ideal fluid
Water

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

Mixed flow pump
None of these
Axial flow pump
Centrifugal pump

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Hydraulics and Fluid Mechanics in ME
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

equal
more
less at low temperature and more at high temperature
less

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Hydraulics and Fluid Mechanics in ME
Poise is the unit of

surface tension
shear stress in fluids
capillarity
viscosity

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Hydraulics and Fluid Mechanics in ME
Axial flow pump is started with its delivery valve

Kept 50% open
Kept fully open
Irrespective of any position
Kept fully closed

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Hydraulics and Fluid Mechanics in ME
The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

0.95 times
0.67 times
0.81 times
0.34 times

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