If, during a fire, a total occupant load of 185 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. 1.3 min
b. 1.4 min
c. 2.0 min
d. 5.7 min
Solution | Posted 10/02/18
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
Solution | Posted 08/30/18
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 0.35 grams per cubic meter. Conservatively use Mulholland and Croarkin's specific light extinction coefficient.
a. 1.0 m
b. 1.9 m
c. 2.6 m
d. 5.2 m
Solution | Posted 08/17/18
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?
Solution | Posted 07/20/18
A theater has aisles serving its main seating area. One of the aisles has a stair 51 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. 37.5 in.
b. 43.5 in.
c. 45 in.
d. 47 in.
Solution | Posted 07/17/18
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