How DTC Mechanical Courses Work
Designed to maximize your ability to solve problems quickly during the exam.
Mechanical Exam Strategy Videos
Dr. Tom outlines the strategies he has found lead to success.
Engineering Insights & PE Exam Strategies from Dr. Tom’s Classroom
Welding Symbols
Watch our video! One of the most important standards in machine design are those specified by the American Welding Society. In one symbol critical information
April 3, 2026
MECHANICAL PE EXAM TIP – Units, Units Units!!!
If I wasn’t Dr. Tom, I’d be Dr. Units. I cannot tell you how many times units are the reason someone gets the wrong answer
March 30, 2026
Turn Complex Motion into Clear and Understandable Solutions
Watch our video! One of the most common and useful mechanisms in machine dynamics is the “slider-crank.” It has three elements: the “slider”, the “crank”,
March 27, 2026