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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the liquid enters the pump

At the canter
At the top
From sides
At the bottom

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Hydraulics and Fluid Mechanics in ME
Surge wave in a rectangular channel is an example ofi) steady flowii) unsteady flowiii) uniform flowiv) non-uniform flowThe correct answer is

(i) and (iv)
(ii) and (iv)
(i) and (iii)
(ii) and (iii)

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Hydraulics and Fluid Mechanics in ME
For small discharge at high pressure, following pump is preferred

Axial flow
Centrifugal
Reciprocating
Mixed flow

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Hydraulics and Fluid Mechanics in ME
In a Kaplan turbine runner, the numbers of blades are generally between

16 to 24
8 to 16
4 to 8
2 to 4

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Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

Same as
Higher
Lower
None of these

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Hydraulics and Fluid Mechanics in ME
When the Mach number is less than unity, the flow is called

Sub-sonic flow
Hyper-sonic flow
Sonic flow
Super-sonic flow

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