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  1. justin-hawaii

    October 2017 PE Results Survey

    Thanks for pointing that out.  I just fixed it.  
  2. justin-hawaii

    October 2017 PE Results Survey

    After you receive your results, can you please take a few minutes to fill out a survey?  This will help the future PE test takers get an idea on the references used, number of hours spent studying and which topics are difficult/easy.   Power October 2017 PE Survey...
  3. justin-hawaii

    October 2017 PE Results Survey

    After you receive your results, can you please take a few minutes to fill out a survey?  This will help the future PE test takers get an idea on the references used, number of hours spent studying and which topics are difficult/easy.   HVAC & Refrigeration October 2017 PE Survey...
  4. justin-hawaii

    Pre-Oct 2017 PE Exam Survey - Gauge your level of studying

    Oct 2017 Electrical Power PE candidates, I hope your studying is going well.  Please complete this survey on your current studying progress.  The results should give you an idea on whether or not you are behind on your studying, by comparing your level of studying with others.   Electrical...
  5. justin-hawaii

    Pre-Oct 2017 PE Exam Survey - Gauge your level of studying

    Oct 2017 Mechanical PE candidates, I hope your studying is going well.  Please complete this survey on your current studying progress.  The results should give you an idea on whether or not you are behind on your studying, by comparing your level of studying with others.     Thermal & Fluids...
  6. justin-hawaii

    When to use psychrometric quick equations

    namod65,  I really like your theory!  I second it.   My theory is that of the 80 problems, they'll put one in there that will try to trick you on the use of the quick equations. The rest we should be fine using the 1.08 and 4.5 equations. We just need to be able to recognize that one problem...
  7. justin-hawaii

    NCEES HVAC+R Practice Exam #138 Solution (error?)

    I believe this is question #138 on the NCEES 2016 HVAC practice exam.   The question asks for the minimum pressure rating (psi) of the piping system.   I do believe the question is not worded very well.  I think they are assuming that the pump is sized to overcome the vertical lift of 160 ft...
  8. justin-hawaii

    NCEES HVAC+R Practice Exam #506 and #508 Solution Errors

    I concur and also NCEES agrees for #506.  https://ncees.org/wp-content/uploads/2016-Mec_HVAC_errata_ALL.pdf I am going to email NCEES to let them know about #508.  I will let you know what they say.    
  9. justin-hawaii

    Steam power cycle

    I believe conservation of mass still applies to an ideal Rankine cycle, so your mass flow rate should remain constant.  
  10. justin-hawaii

    NCEES HVAC+R Practice Exam #506 and #508 Solution Errors

    I concur that the solution for problem #506 uses the wrong conditioned space temp.  76 degrees is used instead of 74 degrees in the solution.   For problem #508, I found that the ASHRAE Fundamentals 2017, Chapter 26, Table 3 Effective Thermal Resistance of Plane Air Spaces, 90 deg F mean temp...
  11. justin-hawaii

    Capacitor Banks - calculating series/parallel kVAR

    The problems listed by OP are power factor correction problems.   cos90, I think an application guide of how capacitors are used to correct power factor will be a great reference for you.  This reference will help to complement the more school type references, like Wildi.  I like to look for...
  12. justin-hawaii

    Mechanical HVAC Exam Prep Adivce

    Since there has been only 2 years between your engineering classes (thermodynamics, psychrometrics, heat transfer, fluids), I would recommend that you proceed directly to doing as many problems as possible.  I would start with the NCEES HVAC Exam and then the 6 MS.  If you feel like you are weak...
  13. justin-hawaii

    Mechanical HVAC Exam Prep Adivce

    I think some information on your background would help the forum in giving you a better suited study plan.   What is your current profession?  How many years has it been since you graduated college?
  14. justin-hawaii

    Does anyone try the 80-problem practice exam by Justin Kauwale?

    Thank you justdoitNG, I very much appreciate the suggestion to include more ASHRAE type problems and I think that is valuable information for others taking the Thermal and Fluid exam.  I will definitely include more of these types of problems in the next version of the sample exam. ASHRAE...
  15. justin-hawaii

    Does anyone try the 80-problem practice exam by Justin Kauwale?

    Hi ericjiangpsu Yes, the exam and guide have been updated for the new 2017 mechanical pe exam format. There are a few people on engineer boards that took my sample exam. Hopefully they respond too. 
  16. justin-hawaii

    ME THERMO/FLUIDS

    GR8 PLUMENG, I took both the HVAC and Fire Protection (passed).  I thought that the Fire Protection was much harder than the HVAC due to the number of codes that you have to study and also the Fire Science portions, which are covered in a Fire Protection Degree.  One person I know is switching...
  17. justin-hawaii

    April 2017 Results Map

    I received notice from one of my students that Hawaii was released yesterday (5/30) via mail.  
  18. justin-hawaii

    Results of April 2017 Survey

    Thermal Link revised for viewing the results:  https://docs.google.com/forms/d/1aELHHnoOkH0P13fuUdoyJPPccA3foCHEEYdEWjSh7XY/edit?usp=sharing
  19. justin-hawaii

    Results of April 2017 Survey

    I just fixed it.  This happened on another survey too...I have restricted the rights, so nobody else can edit the form.  
  20. justin-hawaii

    Failed Power, 1st attempt, NC

    Thank you Stephen for your diagnostics.  Let's assume the passing score is 56/80 (70%), then you are only off the cut by 13. My analysis of your diagnostics is based on this one overall concept, the areas that you received low marks might indicate that you need more work on the fundamentals...
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