A fire is discovered on the 34th floor of a structure. Firefighters from the first-arriving engine company proceed to the 33rd floor of the occupancy and connect three 50-foot sections of 2 1/2-inch hose to the standpipe outlet. The hose is equipped with a solid stream nozzle that has a 1 3/8-inch tip. The pump operator connects the pumper to a fire hydrant and stretches two lines of 3-inch hose
with 2 1/2-inch couplings, each 50 feet long, to the FDC. What is the total pressure loss between the pumper connected to the FDC and nozzle on the attack line?
What will be an ideal response?
239 psi
Health Professions
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In contrast to endocrine glands, exocrine glands:
A. secrete hormones that transfer information between cells to regulate body functions. B. lack ducts, so they release hormones directly into the surrounding tissue and blood. C. have ducts that carry their secretions to the surface of the skin or inside a body cavity. D. regulate functions such as mood, growth and development, and sexual function.
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