[BalinKing]

The advantage(?) of take-home exams à la Caltech is that they can be open everything and 3–5 hours long :-P (For what it's worth, being able to listen to music during an exam, ctrl+F a digital textbook, etc. was super awesome; it would deeply sadden me if that becomes infeasible in the future once enough students stop caring about the Honor Code....)

[pdonis]

I had in-class exams at MIT that were up to 3 hours long. Take home would definitely have been nicer.

[throwaway2037]

Could students use the bathroom during the exam? If not, sheesh it could hard to hold it when very nervous during a long exam!

[hawaiianbrah]

I only recall some finals at MIT being that long. Which classes had normal exams that long?

[pdonis]

They were finals, not ordinary tests or midterms. Junior and senior year, I think one was Chemical Engineering, but I can't remember the exact name or number.

[throw48296]

This year 6.7800 has a both 3h midterm and a 3h final, for instance. Wish us luck.

[pdonis]

That would be this?

https://web.mit.edu/6.7800/www/info24.pdf

Or at least this year's version? If so, it looks like Course 6 hasn't gotten any easier over the years. Good luck!