<p>That’s what makes engineering so much more difficult than other classes. I remember that most of my midterms were just 2-3 problems that really tested your ability to start at the fundamentals and generate a solution.</p>
<p>I remember back in UG fluids the professor could just say that the no-slip BC wasn’t valid, the density wasn’t constant or the fluid wasn’t newtonian, and that could really separate the plug-chuggers with the thinkers. </p>
<p>While it was scary while taking the exam it was really testing whether we knew the core concepts. To this day never underestimate the importance of a force or energy balance.</p>