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The worst expected symptoms for humans when concentration of carbon monoxide reaches 1600 parts per million is which of the following:
a. no adverse effects for up to 8 hours of exposure b. dizziness after 45 minutes of exposure c. nausea, headache, and dizziness after 20 minutes of exposure d. unconsciousness and danger of death after 10-15 minutes of exposure
1 Comment
A theater has aisles serving its main seating area. One of the aisles has a stair 49 inches wide, with a wall and handrail on one side and fixed seating on the other. If the handrail has a center-line of 4 inches from the wall, what is the effective width of the stair? a. 35.5 in. b. 41.5 in. c. 43 in. d. 45 in. Solution | Posted 09/11/19
A fire protection consultant is providing performance-based design to justify innovative architecture design and is assessing predictive behavior during exiting. Determine the visibility (in m) for a light reflecting exit sign with smoke that is produced by flaming combustion of plastic if the smoke has a mass concentration of 0.52 grams per cubic meter. Conservatively use Mulholland and Croarkin's specific light extinction coefficient. a. 0.7 m b. 1.3 m c. 1.8 m d. 3.5 m Solution | Posted 08/20/19
If, during a fire, a total occupant load of 205 people are exiting through a building's main entry (a 7-foot double door with an effective width of 6.5 ft) and the density near the main exit door results in about 0.25 persons/sqft, the time (in minutes) it would take for all of these occupants to exit the main doors is most nearly: a. 1.5 min b. 1.6 min c. 2.2 min d. 6.3 min Solution | Posted 08/12/19
Which of the following characteristics describe limitations which may affect survivability in a fire environment, such as metabolism, lung capacity, pulmonary disease, allergies, or other physical limitations? a. mobility b. reactivity c. sensibility d. susceptibility Solution | Posted 08/05/19
A mid dermal, or full-thickness skin burn of 700 μm would be classified as a burn of what degree? a. 1st degree b. 2nd degree c. 3rd degree d. 4th degree Solution | Posted 08/02/19
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