During the FE Exam you will have to solve problems on internal forces in members. In this post (and video above), I will provide you with a practice problem on determining the internal force in a truss member to help you prepare for these questions.
The following sample problem was provided to us by PrepFE.
PrepFE is one of the most effective FE exam self-study prep services out there and happens to be one of the most affordable too. PrepFE is an app that gives you access to countless sample FE problems to bolster your self study efforts.
You can visit www.prepfe.com/redeem and use the discount code PASS-EXAM-0010 to receive 10% off and get some great FE practice problems.
So here’s the problem:
A table has been set up to aid in the drawing of an influence line. What is most nearly the internal force in member AF when the influence line point load is placed at joint B? Assume the moving point load is equal to 1kN.
For a more detailed explanation of determining the internal force in a truss member, please watch the video at the top of this post.
I hope you found this week’s article helpful. We publish videos weekly on our Pass the FE Exam YouTube Channel. Be sure to visit our page here and click the subscribe button as you’ll get expert tips and tricks each week – to ensure your best success – that you can’t get anywhere else. Believe me, you won’t want to miss a single video.
Lastly, I encourage you to ask questions in the comments of this article or here on this page and I’ll read and respond to them in future videos. So, if there’s a specific topic you want me to cover or answer, we have you covered.
I’ll see you next week.
Anthony Fasano, P.E.
Engineering Management Institute
Author of Engineer Your Own Success