Be the first to know when our PE prep is ready
We built 1,454 FE Civil problems and kept our FE Civil practice completely free. Now we are building high quality, affordable material to pass the PE, made for engineers with a full‑time job. Join the waiting list and you hear the day it opens.
Just your email. One message the day it opens, nothing else.
Yours?What we are building
Worked problems for every exam topic
Exam-depth problems like the ones below. Every solution shows each step, points to the handbook section, and explains each wrong answer.
Practice that fits a commute
Ten-minute sets on the FE for Raccoons phone app: which method, which equation, which trap. The long calculations wait for your desk.
Full timed practice exams
The real number of questions, the real clock, scored by topic.
What our PE problems look like
Three samples, one in each format the computer-based exam uses. Every one comes with a worked solution, the handbook section, and why each wrong answer is tempting.
A 150-acre watershed drains to one outlet (figure). Both subareas are hydrologic soil group C. For a 24-hour rainfall of 4.5 in, the runoff volume from the watershed using the NRCS (SCS) curve number method is most nearly:
Choose one
A trapezoidal earth channel (n = 0.025) carries 250 cfs on a slope of 0.0015 ft/ft. The bottom is 8 ft wide and the side slopes are 2H:1V. Enter the normal depth, in feet, to two decimals.
Fill in the blank
Two primary clarifiers (figure) treat an average flow of 5.0 MGD and a peak hourly flow of 12.5 MGD, split evenly. Each has a peripheral weir around its full 60 ft diameter. Which of the plant's design criteria are met? Select all that apply.
Select all that apply
Why we are building it
I passed the FE Civil in 2025 and I am sitting the PE in March 2027, while working full time as a drainage engineer. Finding the hours is the hard part, so that is what we are building for. Everything here gets tested on my own study first.
Jerson Garcia, founder of FE for Raccoons
Do not start the PE from scratch
Join the waiting list and hear first when it opens. Our FE Civil practice stays completely free.