Start Your Engines: The Chūnin Exam Begins!

is episode 24 of the original Naruto anime.

Synopsis
At the beginning Ibiki Morino appears and tells everyone one to find their seats. Naruto notices Hinata and says hi. They start the Chunin exams with a written test, Naruto struggles with the written test. Then Ibiki calls out the rules: no questions, no cheating and their teams score will be added up to see whose team will pass. There are various Chunin on the ends of the room to see if they are cheating, if you are caught cheating three times then you are disqualified. Eventually everyone finds out that in order to pass you must cheat so everyone uses their own ways to subtle cheat.