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Hey guys, I was solving an atmospheric dispersion question and was a little confused on something. In the problem, stability class is C and effective stack height H was given as well. Since the downwind distance X was not given, they used the formula H/square root of 2 to find the vertical...

Hey all I'm getting really hung up on what length (distance) to use in the hydraulic gradient equation. In the solution below, they use the "diagonal" distance between the wells. I would have just used 175 ft. The example from this link also used the "horizontal" distance...

I'm having trouble understanding the storm return period equation on Page 32 of the NCEES reference handbook. It says: The probability that a T-year return period event will occur at least once in n years is P = 1 - (1/T)^n However, in my Intro to Environmental Eng textbook, the risk that the...

Hi All, I wasn't sure which board to post this question but I'm assuming all disciplines will have engineering economics on their exam? Anyways I'm studying this topic right now to refresh my memory and I was stuck on the problem/solution below: Two coatings are under consideration for a...

Hi All, I'm trying to solve this problem about a tank draining: A 3 inch diameter orifice on the side of a 5 ft diameter tank draws the surface down from 7 ft to 5 ft above the orifice in 53 seconds. Calculate the discharge coefficient.  I started using the equation Q = C A sqrt 2gh, but the...

Ive been out of school for 5 years so Im not sure if its worth taking a review course for the PE Environmental. Can someone recommend which courses were helpful and which ones had good practice problems? (I think Air and possibly wastewater treatment might be my weakest areas). Any insight would...

I think most states require work experience approval first before sitting for the exam? Just wondering which states are exempt from this rule. 

For New York, do you need a licensed PE to sign off on your application? I'm hearing that you don't necessarily need one. Does it "help" (i.e. make approval easier) if you get a PE to sign off anyway? Are there any other interesting rules or tips I should know for NY State before I apply? Thank...

The application states "Explain here any changes in your title resulting from promotions or other job changes during this period of employment." Can someone guide me as to what they are looking for here? i started working as a Project Manager Intern and then my title changed to a regular...

0Hi All, I want to apply for the April 2019 PE Exam and I am just getting started with my application. I checked to see when the deadline is and I come across this paragraph from the NYS website: NCEES Principles and Practice (PE) Examinations (April 2019 paper and pencil & computer...

I'm taking LEED AP BD+C in a few months (hopefully i'll be ready by then) but i figured starting a forum on this exam would help others out. Post your questions and advice/feedback here! Also if you know any good study materials, please feel free to share :) I'm really nervous about this exam...

Apparently the EIT certificate is not mandatory. My state is charging $70!! I dont think Im going to buy it lol What are your thoughts on getting the certificate or not? Also i started working a few months ago and im still a fresh graduate so the PE exam is far away for me. The problem is my...

I'm thinking of purchasing a quiz bank from ppi2pass but I wanted to make sure if it's a really good source before I spend my money! I will be taking the FE environmental soon. I've already studied the FE Review Manual 3rd edition, FE Environmental Discipline review book and I did the 50 Q...