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Passed the PE!  Can I change my credentials from EIT to PE or do I need to wait for something?  I want to change those dang letters!

Anyone out there work the PPI Mechanical Practice Examination (3rd edition) HVAC+R practice problems?  I have an issue with problem #50 on page 14. I am calculating a crawl space temp of 30 F.  The solution says it is 11.9 F.  I calculated my solution two different ways and suspect the...

I am not sure how to best attack psychrometric equations on exam day.  Q=1.08 * CFM * deltaT  -or-  Q= 1/spVol * 60 * 0.24 * CFM* delta T Q=4.5 * CFM * deltaH  -or-  Q = 1/spVol * 60 * CFM* deltaH My go to method is the more detailed approach and taking the extra 3 seconds to get the specific...

Does anyone know if refrigerant tables and pressure-enthalpy diagrams are provided during the exam that we can write on? If I flip to my own refrigeration tables in ASHRAE or in a binder and put my pencil to paper to trace something out, that is a test taking no-no, right? Thank you, Ryan

Problem 130: The pump has the following to overcome: 160' wc + 20' wc (friction) + 1 atmosphere. (160+20)*.0438 = 77.9 psi 1 atm = 14.6 psi 77.9 + 14.6 = 92.5 psia Regardless of the upstream pressure at the pump, the outlet still needs to be 92.5 psia.  That is the highest pressure in the...

The solution for this problem says that the air gap has an R-Value of 1.83. ASHRAE fundamentals lists an air gap R-value of R-3.41 for a 3.5" air space with a 0.2 emittance that has heat flowing down (the problem says 90 deg F summer conditions, so assuming A/C inside, flow is down) Did anyone...

Question 118 of the 2016 NCEES practice exam references a CLTD/CLF way for calculating a simple cooling load through glass.  The solution refers to ASHRAE Fundamentals.  I have 2017 and 2013 and both don't discuss the method or provide formulas.   I don't get it. Has anyone figured out what...

Hi Folks, I am 13 weeks, 0 days, 18 hours, and 21 minutes (who is counting anyways?) away from my PE exam.  Yikes!  I don't feel that I have a solid study plan and hope that you can help. I have: 13th edition MERM MERM Practice Problem Book 6 Min Solutions for HVAC 6 min Solutions for...