Photo 1. As the officer of the first-arriving engine company, you must make many decisions that will determine the outcome of the firefight in which you are about to engage. With your company, you must determine where to position the apparatus, how you will establish a water supply, which size handline to use (or a master stream), and where to put the line in operation. Your size-up of the fire's extent and location in the building is critical to the safety of your crew and any trapped occupants.
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