19. The flammable endpoint for a release modeled with the Guidance for Off-site Consequence Analysis is at which of the following points? a. The point where vapors have been diluted to less than the LEL b. The point where the overpressure drops to less than 1 psi in the event of an explosion c. The point where the heat intensity dose falls below 5kW/m2 for 40sec in the event of a fire d. It could be any of the above, depending on the alternate case release scenario being considered 20. What impact in the community would be considered of equal severity to a disabling injury in the workplace? a. 1 medical treatment case b. 1 disabling injury c. 1 fatality d. 10 fatalities 21. Regarding blast yield for the TNT-equivalent model, which of the follow is true? a. The Department of Homeland Security uses a 3% yield to assess threats. b. The Environmental Protection Agency requires a 10% yield in worst-case scenarios c. The literature typically reports yields of 1% or less. d. All of the above are true