PE Problem #72
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 09/16/19
PE Problem #69
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
PE Problem #41
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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