1.Describe the purpose of a preliminary hazard analysis. How is expertise beneficial when conducting this type of analysis? Why is cost-benefit analysis such a critical part of hazard analysis and prevention?2. What are some examples of hazard control methods that are recommended in hazard prevention and reduction techniques? Do you feel that some of these methods are more important to use than others? Which do you believe reduces the possibility of a future hazard? Explain your answer. 3.When conducting an accident investigation, what are some of the more important techniques that need to be used in interviewing accident witnesses in order to ensure all information is objective and accurate? Describe these techniques in detail.4.Compare and contrast the following hazard analysis methods: a. failure mode and effects analysis (FMEA),b. hazard and operability review (HAZOP),c. human error analysis (HEA),d. fault tree analysis (FTA), ande. technic of operations review (TOR).5.When conducting a detailed analysis, explain the method technic of operations review. Explain how it allows both supervisors and employees to work together to analyze workplace accidents, failures, and incidents. Is this a successful method? What are some of the weaknesses of using the technic operations review? Each response should be at least 200 words in length. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.