Training Test exam Safety for Operational Supervisors I suggest you take the free Test exam Safety for Operational Supervisors, which will strengthen your knowledge. You have a good opportunity to prepare for the exam whenever and wherever convenient for you. This test is comprised of 70 multiple-choice questions. Each question is followed by three possible answers, of which only one is correct. A maximum of 70 marks can be scored in this examination. Every correct answer scores 1 mark. You will have passed when you score at least 49 marks. Good luck!