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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
Which place in hydraulic turbine is most susceptible for cavitations?

Penstock
Inlet of draft rube
Guide blade
Blade inlet

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Hydraulics and Fluid Mechanics in ME
A fluid having no viscosity is known as

Real fluid
Ideal fluid
Non-Newtonian fluid
Newtonian fluid

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Hydraulics and Fluid Mechanics in ME
The unit of dynamic viscosity in S.I. units is

N-m/s²
Stoke
N-s/m²
Poise

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Hydraulics and Fluid Mechanics in ME
Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of

Lower discharge
High initial and maintenance cost
Necessity of air vessel
Lower speed of operation

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Hydraulics and Fluid Mechanics in ME
Re-entrant or Borda's mouthpiece is an __________ mouthpiece.

External
Internal
Both A and B
None of these

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