Describe the purpose of a preliminary hazard analysis.

 

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? Explain your answer.

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), and
e. technic of operations review (TOR).

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.