Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. Which of the following statement is correct?

The pressure on the wall at the liquid level is minimum
The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum
The pressure on the bottom of the wall is zero
The pressure on the bottom of the wall is maximum

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

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