Reading Comprehension Questions
b. the heat is extremely intense.c
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| b. the heat is extremely intense. c. the smoke is dangerously thick. d. an explosion occurs. 377. Which of the following is not mentioned as a potential backdraft warning sign? a. windows stained with smoke b. flames shooting up from the building c. puffs of smoke leaving the building d. more intense heat than usual 501 Reading Comprehension Questions 6801_501_ReadingCompQuest_4E[fin].indd 177 3/18/10 1:34:57 PM To prevent the possibility of a backdraft, a firefighter should a. carry an oxygen tank. b. open a door to allow gases to escape. c. make an opening at the top of the building. d. break a window to release carbon particles. 379. When compared with a hot, smoldering fire, afire with visible, high-reaching flames a. has more oxygen available for combustion. b. has more carbon dioxide available for consumption. c. produces more dense gray smoke. d. is more likely to cause a backdraft. The human body can tolerate only a small range of temperature, especially when the person is engaged in vigorous activity. Heat reactions usually occur when large amounts of water and/or salt are lost through excessive sweating following strenuous exercise. When the body becomes overheated and cannot eliminate this excess heat, heat exhaustion and heatstroke are possible. Heat exhaustion is generally characterized by clammy skin, fatigue, nausea, dizziness, profuse perspiration, and sometimes fainting, resulting from an inadequate intake of water and the loss of fluids. First aid treatment for this condition includes having the victim lie down, raising the feet 8 to 12 inches, applying cool, wet cloths to the skin, and giving the victim sips of saltwater teaspoon per glass, half a glass every 15 minutes) over a hour period. Heat stroke is much more serious it is an immediate life-threat- ening situation. The characteristics of heatstroke area high body temperature (which may reach 106° For more a rapid pulse hot, dry skin and a blocked sweating mechanism. Victims of this condition maybe unconscious, and first-aid measures should be directed at quickly cooling the body. The victim should be placed in a tub of cold water or repeatedly sponged with cool water until his or her temperature is sufficiently lowered. Fans or air conditioners will also help with the cooling process. Care should betaken, however, not to over-chill the victim once the temperature is below 102° F 7 8 501 Download 3.61 Mb. Share with your friends:
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