Using an acetylene torch, a welder has been assigned the task to remove a deteriorated steel plate stiffener located 15 feet up the inside of a 50-year-old non-potable water storage tank. Arc welding will be used to weld the new stiffener in place. Although the job is expected to be completed in a single 8- hour shift, what hazards must be considered in planning the job? What are potential employee exposure hazards associated with welding and cutting? Discuss some methods to reduce worker exposure to welding fumes, describe the general precautions for fire prevention when "hot work" (such as welding or cutting) is being performed, and summarize the requirements for "fire watch" personnel. Include any experiences that you have had with welding and the training that precluded.