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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
In a venturi-flume, the flow takes place at

None of these
Atmospheric pressure
Absolute pressure
Gauge pressure

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Hydraulics and Fluid Mechanics in ME
A body floats in stable equilibrium

When the metacentre is above e.g.
When its e.g. is below its center of buoyancy
Metacentre has nothing to do with position of e.g. for determining stability
When its meatcentric height is zero

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is suitable for small discharge and high heads?

Reciprocating pump
Centrifugal pump
Axial flow pump
Mixed flow pump

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Hydraulics and Fluid Mechanics in ME
The specific weight of water in S.I. units is taken as

9.81 × 103 N/m3
9.81 kN/m3
9.81 × 10-6 N/mm3
Any one of these

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Hydraulics and Fluid Mechanics in ME
According to Francis formula, the discharge over a rectangular weir is (where n = Number of end contractions)

(2/3) × Cd (L - 0.1nH) × √(2g) × H3/2
(2/3) × Cd (L - nH) × √(2g) × H²
(2/3) × Cd (L - nH) × √(2g) × H5/2
(2/3) × Cd (L - nH) × √(2gh)

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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