CastlEd · Castled Review
FE Chemical review, built by a plant engineer
Short lessons with a live picture for every idea. Problems with new numbers every time, so nothing is learned by heart. Timed practice tests in the shape of the real exam. And links into SIMs, where you can see the equipment behind the equations running.
Topics
How it works
Each lesson takes one idea the way the exam asks it, shows it in a picture you can move, works an example, and names the trap.
Every problem makes new numbers each attempt, in US or SI units. A wrong answer tells you which mistake it came from, and every answer shows the calculation.
Timed tests with the exam's length, sections, break and question formats, plus a reference sheet to search. Pause if you need to, or keep exam rules.
Pass a topic and refreshers come due at 3, 7, 16, 35 and 90 days, so it is still there on exam day.
Everything here is our own material, written for review. The exam itself, its reference handbook and its own practice exams come from NCEES. Take one of their practice exams before test day: NCEES exam prep.