How do you determine the net effect of two muscle pulls applied to the same spot? What is this process called?
What will be an ideal response?
ANS: You find the resultant pull of the two forces by drawing the two forces, creating a parallelogram by
adding sides parallel to each of the forces, and drawing a diagonal within the parallelogram. The
resultant is the diagonal with its point of application at the original source and whose arrow head
(limit of magnitude) is at the opposite corner of the parallelogram. This is called composition of
forces.
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If a single line of 5-inch hose is used, how many pumpers will be needed to supply 1,000 gpm to a fire scene that is 8,000 feet from the water source?
What will be an ideal response?
The ultimate goal of any fire and life safety inspection program is to:
A. identify building code violations. B. avoid the majority of uncontrolled fires. C. ensure building owners comply with the permit process. D. establish a process of preplan inspections in jurisdictions.