Recent content by Dr. Barber

Well of course not, but by not using updated sources you risk wasting time on irrelevant topics. Get an exam prep guide updated for the current CBT format.

How did the density in table 1.2.1 Properties of Air at Atmospheric affect this problem? This is just a straight lookup in the psych chart. Those answer choices do seem to be too close together. Where is this problem from?

My understanding is that you CANNOT drag lines after drawing them. Makes the SHR protractor pretty much useless. One person on Reddit did post a technique that seems to work well:

That table is for dry air, but what practice problem was affected by this? Dry air at 70F has specific volume of 13.354 ft^3/lbm and at 100% r.h. air at 70F has specific volume of 13.694 ft^3/lbm. That's a difference of less than 3%. For 100F the difference in specific volume between 0%rh (14.1...

No hard copies. Everything is on-screen. This is from NCEES' official YouTube channel:

...and the ads in the mobile version are insufferable

What happened? Before CBT everyone had a test on the same date and it was very lively posting and interacting as people were in a cohort with that common test date. Then, after the test date came the flood of posts with the post-mortems. I expected some drop of activity when NCEES went to CBT...

More likely to get an answer if you post your question here instead r/AskEngineers This forum is not for this kind of question. People here are only concerned with the PE exam

They did treat it as resistances in parallel. The convection resistance is 1/(h_conv*A) and the radiation resistance is 1/(h_rad*A). For parallel you find the total resistance as 1/R_total = 1/R_conv + 1/R_rad hence 1/R_total = (h_conv + h_rad)*A

I have the 2011 NCEES Practice Exam, Thermal and Fluid Systems. ISBN 978-1-932613-61-2 There does not seem to be a problem #10. There's a #110 in the AM section and a #510 in the PM section, but none of those seem to match what you're describing. Can you provide a screenshot of the question...

Yeah, never mind. I downloaded it again this morning and that file does have this page. I'm not sure how it went missing from the file I had been working with.

Fun fact: The handbook is missing page 281, which contains the correlation for Nusselt number for turbulent flow in pipes and the natural convection correlations for vertical plates suspended in a stationary fluid.

Did you have to wear a mask while taking the test?

...and I'm writing study materials for Thermal Fluids Systems and there are quite a few errors in those sections as well. Please be sure to report the errors to them. Also, if you don't mind post them here so others can see them and give you feedback. 

I hear you. I had a hell of a time locating it when it first came out.