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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is

35.3 kN
33.3 kN
3.53 kN
None of these

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Hydraulics and Fluid Mechanics in ME
Metacentre is the point of intersection of

vertical upward force through e.g. of body and center line of body
All of these
buoyant force and the center line of body
mid point between e.g. and center of buoyancy

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Hydraulics and Fluid Mechanics in ME
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)

w × Q × H
w × Q × hf
w × Q (H - hf)
w × Q (H + hf)

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Hydraulics and Fluid Mechanics in ME
The overall efficiency for a Pelton wheel lies between

0.65 to 0.75
0.50 to 0.65
0.85 to 0.90
0.75 to 0.85

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Hydraulics and Fluid Mechanics in ME
The upper surface of a weir over which water flows is known is

crest
weir top
sill
nappe

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Hydraulics and Fluid Mechanics in ME
Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow.

Product
Ratio
Different
Sum

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