Some quick facts about the SMSTS test: The pass-rate is 80% (you must achieve 28 marks out of a possible 35). There are 25 questions in total. 20 questions have multiple-choice answers (worth 1 mark each). 5 questions require a short written answer (worth between 1 and 3 marks each). 5 of the 25 questions are 'safety critical'. You must answer ALL 5 safety critical questions correctly to pass the test. The test must be completed within 30 minutes. You may refer to the supplied course publications during the final 10 minutes of the test. Read more about the SMSTS test in our blog.