Exams: How To Avoid Spending Too Long On One Question

How can I avoid spending too long on one question?

You've got to be disciplined with your time in an exam. You will know the time available to answer that particular question because you can check all of that before you go into the examination room. You know the overall time for the examination itself and the number of marks allocated to that particular question. Make sure that you know how long to spend on the longer answer questions, and make sure you don't go over that time.