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So it is the offset from the projection of the entering grade/tangent to the POC.  Got it now thanks, kind of a silly question, no practical use. Thanks again. FLPEG

Thank you Maji. Attached are the question and solution.  I have no problem understanding how to solve the question, my problem what understanding what dimension the solution of -17.93 feet represents in the vertical curve ( It is a distance from where to where?) Thank you again, FLPEG

*hand sketch

Can someone please explain what distance exactly the "Offset From Entering Grade"  (r*x^2/2) represents in this problem?  Posting a simple and sketch may help me. Thank you in advance.

My appointment notice arrived this morning from Prometric........good luck to all.

Has anyone received their email notification from Prometric to schedule their seismic/surveying exams? This is typically the week they send them out.

I spoke with Mr Reza Mahallati, he is pissed off and in no way is working with Mansour. This is straight out plagiarism by Mansour.

As a follow up: I found a good number of the problems in the Practice Exams & Solutions book to be identical to those in Reza Mahallati´s book. They were taken verbatim without even the effort to change around the values of the dimensions to make it look different or new. One of the...

Anyone know if there is published errata for Mansour´s "Surveying Practice Exam & Solutions" 1st edition? I am looking at an obvious error in Problem 50 in exam 1, but would like know the known errors up front prior to burning an incorrect approach into my brain. Thanks.... FPEG