Szar's Content - Engineer Boards
Jump to content
Engineer Boards

​ ​ ​
 photo CHPE_AnimatedWebBanner_650x1202_zps5704d467.gif

Szar

Supporting Member
  • Content Count

    363
  • Joined

  • Last visited

Everything posted by Szar

  1. indeed! Happy Birthday kind sir!
  2. This kind of rubs me the wrong way. There are no spark notes for the PE exam. If you can determine all the values in a transmission system, great, you can probably get away with minor studying in that subject area and some refresher notes. If you have no idea how a motor works or how to select settings for an impedance relay , its time to crack open a book. There is no shortcut, and I guarantee you will be screwed if you think you just refer to someone else's (or even just your own) without a fundamental understanding of the core concepts. If you understood the core concepts, you wouldn't be asking about if shortcut notes would be OK and avoid the reading. You'd be confident its all you needed.
  3. I'd Concur. But I didn't want to be that guy (or girl... or ze... or organic lifeform thingy? to much PC terms to remember now!)
  4. The NEC is NFPA 70. NFPA 70E is the Electrical Safety Code.
  5. Incorrect. The NEC is NFPA Code 70. A Code is considered part of the NCEES test one (1) year after it has been issued. So 2017 NFPA 70 (NEC) was valid for testing purposes in April 2018. In October of 2017 it was the 2014 edition. Generally speaking, all NFPA codes are 2017 year at this point. Referring to an older code will likely result in the wrong information as sample tests have pointed to tables that have changed between years / editions.
  6. Shut up and mail me my participation trophy!
  7. You need to "wine and dine" them. Offer them the world! Its all about how you ask, and of course the delivery. If you come across as just an another EIT scrub off the street, your never going to get anywhere with them.
  8. If you ask a third time though they give you the real answer you are looking for. its all about persistence!
  9. Szar

    OMG I passed!!!

    of Next Year, mind you. The 2018 Solar Flares will pretty much prevent the Scranton's from being processed this year.
  10. Dont be silly. We already know they regulate the cut score (ie. number of new engineer's) based on how the sun falls upon a dial at Stonehenge at a time determined by a D-20 roll.
  11. I asked a homeless individual on the street. In between the incoherent ramblings about the world being taken over by squirrels he indicated he was very concerned with the NCEES methodology. I presumed he was talking about the scoring methodology. I would never post non-researched and inflammatory material to simply heighten the anxiety of test takers without cause. I trust that homeless individuals insights greatly.
  12. Because its the code + authors comments... As compared to just code...
  13. Unofficial rumors are circulating that this may be the lowest passing percentage to date. Only reason we are hearing about it is because its bringing into question the validity of the NCEES scoring Methodology which is apparently a big deal to some people. Probably wont help you this go around, but perhaps in a cycle it will become clear and something may happen. Maybe in 2021 they will have an updated test or something...
  14. Please confirm if by "Textbook" you actually mean "Handbook". The Handbook has Author notes in blue which provides for explanatory information behind confusing or important code items. Note, the Note ARE NOT CODE. You CANNOT refer to them, reference them, or use them for anything other then discussion / academic purposes. Its a great reference, it contains the "Code" plus the Author comments, but you need to recognize that issue otherwise it can get you into trouble.
  15. So us April-ineans set the test score for ya. Sucka's!!!!
  16. An engineer will never ever use that section. ("Never" is a dangerous word, but I'm comfortable saying that here.) "is not sufficient to start the motor or to carry the load" The only way you jump into this section is if you designed to (A)(1) and (B)(1) and the motor still failed to run properly. Repeatably. And the overload itself was the problem... which is usually never the case when sized appropriately. At this point in the diagnosing, is a field technician's / electrician's domain who is doing the commissioning and startup and cursing the engineer for their "shitty" drawings. (Unless you do commissioning too, then your blaming the designer who obviously messed up your intent.) As a test problem it would basically have to be stated that the overload was sized according to 430.32(A)(1) and (B)(2) and still failed to run. Very important and self evident information in the problem that almost answers itself for you, and unlikely to be a test problem.
  17. Lies. Civil engineer's don't even need to count past 9 to do their job. Do they even know how to multiply?
  18. Just do not try a Manager or PM. You'd need like 6 Managers or 4 PMs to get an equivalent exchange there.
  19. Anyone else hear about the NCEES warehouse fire that burned up all the scan-trons and invalidated the last test?
  20. What part of the code are you following here?
  21. This in particular tells me you may not be familiar with Motors. So... an overload IS NOT a breaker or fuse (normally). Its an entirely different class of device, completely separate from the breaker that acts as a short circuit protection device in this case. In the rest of the code, the breaker / fuse serves as both Overload and Short circuit protection. With motors, that is broken down into separate devices. The breaker you are familiar with only protects the cable against short circuit, and is sized according (typically much larger then would otherwise be a allowed for a load.). The overload (while this type I will describe isnt commonly used anymore) is called a bi-metallic overload basically a spinning gear that when is heated causes a material holding the gear in place to melt and the gear to turn. When the overload is in its melty state, the circuit can be broken by the gear and requires either an automatic or a manual reset depending on what you ordered and its configuration. (Now adays solid state overloads are the bees knees.) Overloads come in sizes down to fractional amps up to hundres of amps. Whereas standard OCP breaker / fuse is only common whole numbers and you usually dont see any below 15Amps for breakers but fuses can be fractional amps. On really small motors, the breaker is permitted to be the Short Circuit and Overload protection... but that is again moving outside your question. edits in italics
  22. So first things first. Motor Short Circuit MUST BE sized based on NEC FLA tables in 430.Motor Overload MUST be sized off Motor Nameplate. Not the FLA given in 430 tables. This is dictated by NEC 430.6(1) and (2). You can get into circumstances where Short Circuit and Overload do not match due to the range of values permissible by different base numbers and different multiplies. How the values you provided relate to 430 Part XIV tables and nameplate... not sure. But if the question has those terms, you need to use them. You also miss important information like OCP type for the Short circuit protection, confirmation its a separate or integral overload, how its started, etc etc. Cable seems correct. Short Circuit seems correct assuming the 250% is because you have a I2t Breaker (inverse time) and not an MCP (instantaneous trip) which tends to be much more common in today motor starter world. Overload is one or the other. Its not a range. Usually its 115% of Nameplate as that encompasses 99% of most usual cases... however not enough information to confirm which number you should be using. I've been up since 2 AM with a screaming child though... someone should double check me here.
  23. Clearly the test needs to be harder based on a few individuals I've had the honor of coming across in my career!
×
×
  • Create New...