ECFR Apparatus Pumper Operator Study Guide Questions and Answers 100% Solved

ECFR Apparatus Pumper Operator Study Guide Questions and Answers 100% Solved When using a 2 1/2 or 3 inch hose line to supply the pumper directly off hydrant pressure, it is recommended that lines be no longer than: ️️300 feet When drafting, the maximum theoretical lift is: ️️33.9 feet When more than one emergency vehicle is responding along the same route, units should travel at least ____to______ feet apart: ️️300 - 500 Inside/ Outside rule: If the building is less than ________ stories tall, engine companies should park on the side closest to the building, and the aerial park on the outside. ️️5 Stories If 50 PSI nozzle pressure is being supplied to a 1 1/8 tip on a 2 1/2 handline, what is the nozzle reaction: ️️100 lbs Pressure is simply force per unit area, and is expressed in: ️️Pounds Per Square Inch. (PSI) What eliminates excessive pressure by controlling engine speed (RPMs) ️️Pressure Governors What is a spiral, divergent chamber of a centrifugal pump in which the velocity energy given to water by the impeller bladders is converted to pressure: ️️Volute