* The level of study: A high school sociology exam will be much shorter than an undergraduate exam, which will be shorter than a postgraduate exam.
* The specific institution: Universities and colleges have their own standards and assessment methods.
* The type of exam: Is it a short-answer exam, an essay exam, a multiple-choice exam, or a combination? Essay exams naturally take longer.
* The specific module/course: A final exam covering a whole year's worth of material will be significantly longer than a smaller quiz or midterm.
You'd need to consult the specific exam guidelines or syllabus provided by your institution or professor to know the exact length of *your* sociology exam paper.