Audi driver, P.E.

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Audi driver, P.E. last won the day on October 8 2016

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About Audi driver, P.E.

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    Chief Engineer
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  • Engineering Field
    Design Engineering
  • License
    PE
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    TI
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    Mechanical

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    Male
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    Eastern Washington
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    Backpacking, basketball, football, sarcasm, and weightlfting

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  1. Going to my grandmother's funeral tomorrow.
  2. Well, I don't know exactly how small you think a pump is that can produce 1001 gpm at 1 psi, but yes. That is the case (keeping in mind, of course that what the 6ms problem is applying the equation to is only a part of the total pressure drop across both legs). And if you think it is silly that it is so, for this example, consider: just how do you suppose you could induce the flow to actually be split as you suggest it is? Perhaps working out the respective pipe diameters, lengths, type of flow, etc. might be instructive, in that respect. But before you attempt any of that, it might be worthwhile to note that this type of problem (while actual) is atypical for an exam of the NCEES type. I looked in my undergraduate fluid mechanics course text by Crowe and while there isn't a good explanation included, I see that there IS a section problem that deals with this very issue at the end of chapter 10 (problem 10.23 in what is the 4th edition), and while the section on parallel flow in that chapter deals with the much more commonly seen problem(s), apparently Crowe figured a student could figure it out. As I noted, the type of problem 6MS is giving is encountered more frequently in an electrical context where resistors in parallel are what is considered. Same same, however... you know, since electron flow is modeled as a fluid in 100 level electrical circuit analysis courses. The key for the TFS exam will be how to properly use and understand the Darcy-Weishbach equation in conjunction with Bernouli's, so try to focus your study on more productive applications and topics. Most folks on this board don't think too highly of 6MS. I never have owned it or worked its problem set but I am starting to understand their opinion.
  3. A limit you have accepted.
  4. The only limit is that which you accept.
  5. It is different from the MEPP13 and the MERM13P, and as it goes into more depth, it is supposedly a helpful resource to have for the new test format. See also, this thread
  6. http://ncees.org/engineering/#maryland exam specs are here: http://ncees.org/engineering/pe/
  7. It is a typical (and appropriate) way to calculate flow in parallel. And it is the same formula used in electrical flow, btw. If the flow/drops were in series, then it is simply additive. In your hypothetical, your total drop is 50psi, not 100psi..
  8. I've never heard of one, but I will say that a good ruler will come in handy. I also took a larger format chart with me to the exam that allowed for better resolution. There is a thread on here where several are linked.
  9. That is odd and counter-intuitive. Does not NCEES require that you get approval from your state to sit for the exam? How do they (NC) determine who is approved?
  10. There are no law and/or ethics questions on the NCEES exam. I belive, if NC is like other states, that the law and ethics test is part of the application process and therefore must be done PRIOR to sitting for the NCEES exam.
  11. Just an FYI, obviously you have to know yourself and your limitations, but I had been out of school 20 years when I took the exam. I did not use a review course and passed the first time using, essentially, Ram's method linked above.
  12. Seems like as good an excuse as any to see Aliens for the first time.
  13. I guess @Supe will be disappointed if he ever visits.
  14. I suggest a snapshot of the page.
  15. Building codes may be at the root of the issue. But, as you note, they likely read Minimum...