Sprinklers that are kept closed by fusible links or other thermally sensitive devices are activated:
A. automatically by heat from a fire.
B. automatically by pressure from within the sprinkler.
C. When the sprinkler is 50% covered by smoke.
D. when an electronic detector or manual control device is activated.
Answer: A. automatically by heat from a fire.
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Which of the following BEST describes the method used by a firefighter heeling from outside the ladder?
A. Slide leg over and behind a rung, rest weight on thigh. B. Chock butt end with one foot, grasp beams, and press ladder against building. C. Stand with feet shoulder-width apart, grasp beams at eye level, and pull backward. D. Place foot on bottom rung, grasp halyard, and rest weight against halyard rope.
Calculate the cerebral perfusion pressure when the mean arterial blood pressure is 120 mm Hg and the ICP is 14 mm Hg
a. 134 mm Hg b. 106 mm Hg c. 120/14 mm Hg d. 134/106 mm Hg