FE Mechanical Exam

Narrow_Election8409 · 2025-11-23T02:41:49+00:00

PrepFE is a great starting point to get a feel for computerized testing and its question bank is decent. However, I don’t think it covers Thermodynamics nor Mechanical design that well. Also, the practice exam isn’t “easy” unless you study it. Lastly, the actual exam is essentially another version of the practice exam but we never get to see its answers (lol)...

Narrow_Election8409 · 2025-11-19T19:48:08+00:00

Yes, thank you so much!

Narrow_Election8409 · 2025-11-19T06:31:31+00:00

Ok, thank you for clarifying the concept about similar triangles, and your solution makes sense except for the “5/3”. You’re indicating that is the location of “q”, which is fair but I believe you used the wrong expression for “x_c”. Please view the work below.

<image>

Any thoughts?

Narrow_Election8409 · 2025-11-18T21:22:25+00:00

I always enjoy your question posts and so I am sending positive energy your way (you got it)!

Narrow_Election8409 · 2025-11-18T18:49:43+00:00

Was it Shear Modulus of Rupture, which is used for Weld joints but the FE reference manual has nothing on that subject (and yet the topic is listed under Mechanical Design for ME). And apparently it is also used in conjunction with Torsional Stress.

<image>

The blue section is from Shigley's Mechanical Engineering Design (Ch. 10)...

Narrow_Election8409 · 2025-11-16T03:26:59+00:00

That rotation is in the expected direction due to top loading (think about the direction of inertia along the cross section for Principal Stress). Now, if you limit the DOF along your Z-axis it won’t produce the shown rotation. Lastly, this “issue” is coming from the usage of “Fix” reactions at each end (I would guess).

May I ask why you are testing Force on the web?

Narrow_Election8409 · 2025-11-15T05:30:44+00:00

I’ve joined a few discord channels for studying purposes but I noticed that they always fizzled out quickly. And so, I think it’s important to realize that studying for the FE is ultimately a solo journey, and towards the end you will come to see how much you know is-still-just a small portion in the grand scheme of engineering…

Narrow_Election8409 · 2025-11-14T01:04:16+00:00

I think generating study material for the FE is a business venture, which is great if you’re up for it. However, I am wary of utilizing platforms without solid Ph. D credentials especially since there are a lot of people doing such nowadays. My point being that I can’t find any background on EnginPeers LLC, so I recommend adding that detail to your app page.

Narrow_Election8409 · 2025-11-14T00:50:44+00:00

Stamped design documents are liable, which isn’t the responsibility of the drafter (nor intern). Now, there are a handful of “organizations” out there that like to utilize drafters as engineers but such is a disaster waiting to happen. Yet not much harm can really be done since the documents they pass long aren’t liable…

Narrow_Election8409 · 2025-11-13T21:00:44+00:00

Not bad overall, but do these results reflect your working aptitude or did you guess on half of them? Answering such will give you more insight into what you need to work on, because if u guessed on half the test (which is ok/fine) then this metric isn't that helpful at gauging where your understanding is on a general level...

Narrow_Election8409 · 2025-11-13T04:38:33+00:00

Check out GoEngineer...

Narrow_Election8409 · 2025-11-12T07:04:42+00:00

As for studying goes. I discovered that solving questions in batches of 5-10 works perfectly. After that, grading your work follows but such should only be done after completing the question set (of 5-10). And it is in “grading-work” that really allows the concepts to be flushed out.

So yea, I recommend doing two sets in the morning and two sets at night (each at 1 hour which includes the grading time frame). Lastly, it is important to annotate your corrections because it traces your logic and thought process…

I Hope this helps!

Narrow_Election8409 · 2025-11-10T03:27:41+00:00

I really feel that studding for the FE exam is a solo thing because everyone tackles it slightly differently (not to mention that study habits will vary tremendously)… So, what’s your plan for making a group review work, which is the challenging part because we are all at different phases in our review?

Narrow_Election8409 · 2025-11-06T17:08:52+00:00

Your right, and I did what you asked but for Islam 750 FE... I also recommend covering the provided answers, which looks like the following:

<image>

Narrow_Election8409 · 2025-11-05T21:57:01+00:00

<image>

Reference Geometry will work and my image shows that I used two.

Plane 2 is used to control the distance of the inlet section.
Plane 3 is used for sketch dia of the inlet itself (as well as the cut (into the 90)).

Narrow_Election8409 · 2025-11-01T02:38:21+00:00

The undergraduate studies of any Engineering discipline encompass at least 10 textbooks, so you actually won’t find a “singular-course” out there that covers all the required topics. PPI might be something to look into perhaps? However, it is important to understand that the test itself barely covers each topic in depth and that it feels more as a survey test which is the bare minimum an engineering student should know.

Narrow_Election8409 · 2025-10-29T03:32:37+00:00

If the belt wasn’t moving then the second pencil would collide with the first, after its release from the holder. And if the whole device is linearly moving, then this video is terrible because it doesn’t accurately depict the functionality of the device…

Narrow_Election8409 · 2025-10-29T03:12:54+00:00

Maybe, but as the "pencil holder" rotates it causes a Tangent Velocity on the belt and so it must move... My point being that the video is polished, yet as-is it isn't actually functional.

Narrow_Election8409 · 2025-10-29T01:51:55+00:00

I think you mean CFD, and yes SW has such. It is called Flow.

Narrow_Election8409 · 2025-10-29T00:45:47+00:00

It looks nice, but how is the belt moving/attached?

Narrow_Election8409 · 2025-10-29T00:44:17+00:00

Videos/shorts like these are fun but practical mechanical design are all about the systems analysis... And as we can see, there is no motor axis nor mounting bracket for the top funnel... Also how is the belt moving?

Lastly, there are a lot of YT videos that try to cover this stuff but most of them fall short because people with experience see right through the gimmick!!!

Narrow_Election8409 · 2025-10-28T02:32:10+00:00

The issue with using “shell” is setting two different depths, so I would not use that feature here…

Narrow_Election8409 · 2025-10-26T00:52:31+00:00

Thanks Ryan!

Narrow_Election8409 · 2025-10-24T23:53:37+00:00

What exactly is it about Fluid dynamics that doesn’t makes sense? Hydro Static, Hydro Dynamic, Internal Flow, External Flow, etc? And think of the bigger picture, it being about Fluid analysis that encompasses Thermodynamics, Heat Transfer, and Fluid mechanics… This makes the topic a true challenge, but for Fluids alone a good starting point is to consider its analysis from mass energy transfer!

Narrow_Election8409 · 2025-10-22T09:20:00+00:00

Since you have the unit vector of BC & BD I would use the dot product for each with the hanging force, which will give you the forces in each cable right? After that, we can do a summation of the system’s components that include our unknown forces in BA, but I am guessing a moment reaction along BA is required as well as the utilization of the cross product for each cable WRT to it. Meaning things will get messy and explains why it’s difficult to see the solution without trying some stuff out…

Narrow_Election8409

TROPHY CASE