I reckon 3 out of 5 think it will stop the engine eventually!
Sounds like either (a) poor instructing because they hadn't been taught the subject they were asked about or (b) ineffective instructing techniques because they didn't recall the information
Maybe a visit to the bookshop and a purchase of something like "Writing Training Materials That Work" by Foshay, Silber and Stelnicki would be appropriate.
Professional application of the cognitive learning will quickly pay dividends for the instructor and the student.