Let's solve this Fluid Mechanics FE type question covering the static pressure on a submerged gate. This will be applicable to FE Civil, FE Mechanical, FE Environmental and FE Other Disciplines:
https://ncees.org/wp-content/uploads/FE-Civil-CBT-specs-1.pdf
https://ncees.org/wp-content/uploads/FE-Mechanical-CBT-specs.pdf
https://ncees.org/wp-content/uploads/FE-Environmental-CBT-specs.pdf
https://ncees.org/wp-content/uploads/FE-Other-Disciplines-CBT-specs.pdf
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Timecodes:
0:00 - Intro
0:14 - Reading problem statement
2:42 - Using NCEES FE Handbook 10.0.1. hydrostatic force equation
3:40 - Drawing cross-section of the gate into the page
4:51 - Applying trigonometry to find the angle "theta"
6:57 - Defining y and ycp - distance to the center and distance to the center of pressure
12:35 - Find the location where the hydrostatic force acts using NCEES FE Handbook 10.0.1.
14:00 - Using the moment of inertia equation for a rectangular cross-section found on page. 111 in FE Handbook 10.0.1.
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