The considerations to determine the number of hose lines needed and where to place them at an occupied apartment building are as follows. Protection of life. The protection of life being one of the most important considerations. Preforming an offensive-exterior attack. Reaching the seat of the fire. Protection of the stairs and preventing upward extension of fire, protecting a means of egress for victims and firefighters. Protection of search and rescue crews. Prevention of horizontal spread of fire. Protection in the rear of the structure. Protection of roof ventilation crews, and controlling roof fires and fire extension to other buildings due to roof ventilation. Protection of exterior and interior exposures. Backup lines stretched for any of the discussed areas. Master streams set up as a precaution should the interior lines need to be abandoned.

Thank you for your intellectual response to the discussion question. These considerations are critical for effective and safe fireground operations at an occupied apartment building. Protecting life, securing egress routes, containing fire spread both vertically and horizontally, and supporting search, rescue, and ventilation crews are all key priorities. Backup lines and master streams ensure adaptability if conditions worsen. Each hose-line must be strategically placed to address the specific threats present, balancing offensive attack with exposure protection and firefighter safety at all times.