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 bottom of the wall is maximum
The pressure on the bottom of the wall is zero
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

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Hydraulics and Fluid Mechanics in ME
The hammer blow in pipes occurs when

The pipe bursts under high pressure of fluid
There is excessive leakage in the pipe
The flow of fluid through the pipe is suddenly brought to rest by closing of the valve
The flow of fluid through the pipe is gradually brought to rest by closing of the valve

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