Hydraulics and Fluid Mechanics in ME
The velocity distribution for laminar flow through a circular tube

is constant over the cross-section
None of these
varies parabolically with maximum at the centre
varies linearly from zero at walls to maximum at centre

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Hydraulics and Fluid Mechanics in ME
If the elevation of hydraulic grade line at the junction of three pipes is above the elevation of reservoirs B and C and below reservoir A, then the direction of flow will be

from reservoir B to reservoirs C and A
from reservoir C to reservoirs A and B
unpredictable
from reservoir A to reservoirs B and C

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