An engineer built a dam, but it failed to withstand the pressure of the reservoir. Which portion of the structure should be the thickest to withstand the water pressure efficiently?
A
Top portion
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B
Middle portion
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C
Bottom portion
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D
Entire dam
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Solution
The correct option is C Bottom portion The pressure of the liquid increases as the depth increases. Hence, the wall of a dam will experience maximum pressure at the bottom potion. So, dam's wall should be thickened from the bottom portion to make them bear this water pressure effectively.