Question 14Safety & Environmental - QMED

The correct answer is B) close all openings to the area. Closing all openings to the area of a fire is the best way to prevent the spread of fire by convection. Convection is the transfer of heat through the movement of gases or liquids, such as air or smoke. By closing all openings, you prevent the hot gases and smoke from being able to spread to other areas, which can ignite new fires. This helps to contain the fire and limit its ability to spread by convection. The other options are not as effective in preventing convection-driven fire spread. Cooling the bulkhead (A) may help, but does not directly address the convection issue. Shutting off electrical power (C) and removing combustibles (D) are also important safety measures, but do not specifically target the convection mechanism of fire spread.