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Fluid Mechanics

Fluid Mechanics
The simple pitot tube measures the __________ pressure.

Dynamic
Total
Static
None of these

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Fluid Mechanics
The distance between metacentre and __________ is called metacentric height.

Water surface
None of these
Centre of gravity
Centre of buoyancy

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Fluid Mechanics
In case of supersonic flow of a fluid through pipeline, the 'Mach number' is

< 1
1
> 1

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Fluid Mechanics
For laminar flow through a closed conduit

Vmax = 0.5Vav
Vmax = Vav
Vmax = 1.5Vav
Vmax = 2Vav

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Fluid Mechanics
In magnetic flow meters, voltage generation is

Due to the motion of conducting fluid through an externally generated uniform field
Neither A nor B
Proportional to the fluid velocity
Both A and B

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Fluid Mechanics
The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is

√(HW/π)
2HW/(H + W)²
HW/2(H + W)²
HW/4(H + W)²

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