Question 1
You have a production area where ten welders are producing small parts using MIG welding on mild steel for eight hours each day. There is a general "haze" visibly present, which increases throughout the work day. What type ventilation system would you recommend for the operation? Which factors associated with the contaminant(s) produced by the welding operation would you consider in choosing the ventilation system? How would you evaluate the effectiveness of any ventilation system you installed?
Question 2
The Heat Stress Index (HSI) uses the terms O (Oxygen required), M (Metabolism), R (Radiation) C (Convection), and E (Evaporation). Compare and contrast the terms. Provide an example of a control method that you believe would be effective in controlling heat stress related to each of the terms M, R, C, and E.
Question 3
What dimensions would you use for a booth-type hood if you wanted an exhaust rate of 1,000 cubic feet per minute and a capture rate of 100 feet per minute to capture organic vapors from a paint spray operation? Be sure to show your work. If you wanted to clean the air that you are capturing before exhausting it outside, what type of air cleaning device would you recommend and why?
Question 4
Compare and contrast the different types of tribometers. In your opinion which of the tribometers best represents the slip resistance of a surface?
Question 5
Compare and contrast the different types of barriers that might be used to protect openings in a floor at a production facility. What factors should an engineer take into account when designing one of these barriers? In your opinion, which type barrier would be most appropriate for an opening between all four floors of a facility that is designed to move material between floors using a crane located on the top floor?
Question 6
Compare and contrast the types of prevention and detection systems used for explosions. Why would it be more difficult to design controls for a room containing explosive materials than a room containing only flammable liquids?
Question 7
Summarize the different fire suppression systems. Which of the fire suppression systems listed in the textbook do you believe should be required to be installed in new buildings?