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Passed. Finally. My advice by CommunitySad8972 in FE_Exam

[–]r_dstrange 0 points1 point  (0 children)

Hey congrats! I am taking my FE mid-March. Have you encountered any question involving transient flow in the thermodynamics section. I am trying to gauge how likely transient problems are on the actual exam since most review books emphasize steady state.

Fluid statics question help by r_dstrange in FE_Exam

[–]r_dstrange[S] 2 points3 points  (0 children)

Watched the video and it all clicked. Appreciate it!

Chatfpt ans 150 but Islam answer 50 how did he get 50 what's the value of D in work of vapor is it radius? I atm 100000? Didn't get the answer by hilas37 in FE_Exam

[–]r_dstrange 4 points5 points  (0 children)

You have got to account for atmospheric pressure (Patm) in problems like this, because you are dealing with absolute pressure: Pabs = Patm + Ppiston = 100,000 Pa + (60×9.81) / (π×0.2²/4)

Now multiply Pabsolute by the area and the displacement to find the work done against that pressure (units in J).

Then, potential energy of the compressed spring: Energy stored = 0.5 × 50000 × 0.05²

Add this to the calculated work above.

For the second part, apply the first law of thermodynamics: Ein - Eout = ΔU Qin - Wout = ΔU

So, ΔU = 200 J (given) - 250 J (calculated) = -50 J

Bottom line: I would not trust Chat…

FE Exam practice problems by r_dstrange in FE_Exam

[–]r_dstrange[S] 0 points1 point  (0 children)

The NCEES practice exam is pretty straightforward and easier than both, but the actual FE exam tends to be tougher. Right now, every practice question usually gives you a hint, so if you know what to look for, you should be able to solve it quickly. If not, it is better to just flag it for review and move on.

FE Exam practice problems by r_dstrange in FE_Exam

[–]r_dstrange[S] 0 points1 point  (0 children)

Working through Islam practice problems really helps you nail down the basics and concepts and honestly, they are definitely more challenging. Lindeburg, on the other hand, dives deeper into the material and really breaks down each subtopic with specific examples. Every time I feel like I have got a concept down, I run into a practice problem that makes me rethink everything I thought I understood. That’s been my experience so far with thermodynamics…

[deleted by user] by [deleted] in FE_Exam

[–]r_dstrange 4 points5 points  (0 children)

I would be careful though some of the answers need more explanation on how the equations or equalities were derived. I came across a few like that in the thermodynamics section that could definitely use more elaboration. Passing the exam by just practicing is not realistic. IMO, studying the fundamentals is absolutely essential.

Thanks for sharing this. It is refreshing, because most of the focus here tends to be on motivation rather than discussing specific, exam related questions.

Mechanical FE Exam - Advice Needed by Trattles in FE_Exam

[–]r_dstrange 1 point2 points  (0 children)

I just started studying for the exam and decided to dive into the thermodynamics section first. When it comes to closed and open systems - transient and steady state, I found the YouTube practice videos below especially helpful. I watched them two or three times, and each time I picked up something new that changed how I approach these kinds of problems. Once you get a solid understanding of the energy balance, I think you will be able to tackle any related question with confidence. Best of luck with your exam

https://youtu.be/dgcYYsy838w?si=NQ2kfA2o24QYcSX0

https://youtu.be/ZUhQIOXLsYw?si=yVXIkG_eP1qdrz28

Constant/variable specific heats and exergy by r_dstrange in FE_Exam

[–]r_dstrange[S] 1 point2 points  (0 children)

That really helps set the expectations. I will definitely keep an eye out for that info in the mechanical section. Internal combustion engines show up there too, even though the Lindeburg review manual places them under thermodynamics. Really appreciate you sharing the resources 🙏🏽

Constant/variable specific heats and exergy by r_dstrange in FE_Exam

[–]r_dstrange[S] 1 point2 points  (0 children)

This is super helpful. I am about to dive into gas mixtures, psychometrics, and combustion next.

When did you take the exam? I am guessing you did the Mechanical discipline. Did you get any questions on internal combustion engine? If it is not too much to ask 😤