When I was a teenager I spent a couple of summers in Alaska with my grandpa, who rented an apartment to a civil engineer (I think) who was in town for a project. He said his dad liked to ask new-hire engineers to figure out how much concrete he’d need for his sidewalk project…it usually came out to several truckloads.
Edison would hand new engineers the glass envelope from an electric light, and ask them what the internal volume was. They'd spend hours with calipers and calculations.
Then when they gave Edison the answer, he'd fill the envelope with water and pour it into a graduated flask. "Looks about right...."
Old engineering joke. The professor includes a question on the final exam, "How would you use a barometer to determine the height of a building?"
A student answers, "I would walk up to the building custodian, and say, 'I'll give you this fine barometer if you tell me how tall your building is.'"
The prof marks the answer wrong, and the student protests. The review board agrees with him, and requires the prof to reword the question.
The new question: "Showing the use of physics, how would you use a barometer to determine the height of a building?"
The new answer: "I would go to the top of the building, drop the barometer off the edge, and time its descent (T). Then, using 1/2 *G*T^2, I would calculate the height of the building."
The board gave it to him.
Ron Wanttaja