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Hydraulics and Fluid Mechanics in ME

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

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

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

Centrifugal pump
Any one of the above
Mixed flow pump
Axial flow pump

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Hydraulics and Fluid Mechanics in ME
An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of

1.2
0.75
0.8
1

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

Unsteady
Uniform
Laminar
Steady

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the pressure varies

Directly as fan speed
Cube of fan speed
Square of fan speed
Square root of fan speed

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Hydraulics and Fluid Mechanics in ME
The most efficient section of a channel is

Rectangular
Triangular
Square
Trapezoidal

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