Final year economics students at Sheffield University are furious after an exam this week contained questions they found “impossible”.
The paper, on the economics of cities, contained compulsory questions on topics they had never been taught, say the students.
More than 90% of those who took the exam have now signed an online petition demanding the university investigate.
The university said all questions were based on topics taught in the course.
But, in a tweet, one candidate complained: “Question three may as well have been in Chinese.”