Procedure: Perform the calculations for each question.

1. At what time is a slow t2 fire expected to reach 2000 Btu/s?
2. If the CO concentration is a constant 13,000 ppm, how long does the person have to escape if they are walking?
3. What heat flux will cause a person to become incapacitated in 1 min?
4. What temperature of smoke will cause a person to become incapacitated in 5 min?
5. After how long of an exposure to 130 ppm of hydrogen cyanide will a person become incapacitated if they are walking?
6. Determine when the person becomes incapacitate (check all tenability criteria) using a 1 s time step. Show all work.
   • Building 200 ft by 50 ft by 20 ft
   • Fast t^2 fire with a maximum fire size of 50,000 Btu/s
   • CO concentration is 0.4t2 ppm • Visibility decreases at a rate of 300,000/(t2/(H-z)) ft/s • Smoke layer temperature increases by 0.000006t(7/3) °F/s