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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The dynamic viscosity of the liquid __________ with rise in temperature.

Decreases
Increases
None of these
Remain unaffected

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Hydraulics and Fluid Mechanics in ME
The pressure of liquid at throat in a Venturimeter is __________ than that at inlet.

None of these
Same
Lower
Higher

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Hydraulics and Fluid Mechanics in ME
The weight per unit volume of a liquid at a standard temperature and pressure is called

Specific weight
Mass density
Specific gravity
None of these

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Hydraulics and Fluid Mechanics in ME
Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is

greater than 2d
between 1.5 d and 2d
less than d
between d and 1.5 d

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Hydraulics and Fluid Mechanics in ME
The equation of continuity holds good when the flow

All of these
is one dimensional
is steady
velocity is uniform at all the cross sec-tions

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Hydraulics and Fluid Mechanics in ME
Multistage centrifugal pumps are used to obtain

Pumping of viscous fluids
High head and high discharge
High head
High discharge

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