Basic Firefighter Written Practice Exam

At what degree angle should a vehicle fire be fought from?

1. 30 degrees

2. 45 degrees

3. 60 degrees

4. 90 degrees

The correct answer is: 45 degrees

Fighting a vehicle fire at a 45-degree angle is optimal because this position allows the firefighter to effectively use a stream of water or suppressing agent while minimizing the risk of exposure. At this angle, the firefighter can deliver water directly towards the base of the fire and the burning materials, which is crucial for effectively extinguishing flames and cooling overheated surfaces. This position also helps prevent the heat and flames from reflecting back toward the firefighter, reducing the potential for injury. Furthermore, approaching the fire at an angle allows for better visibility and situational awareness, enabling the firefighter to monitor the fire's behavior and any potential hazards. In contrast, different angles, such as 30 degrees or 60 degrees, may not provide the same level of effectiveness or safety. Deploying from a steeper angle, like 90 degrees, could lead to increased risk since it places the firefighter closer to the intense heat and the potential for explosive combustion, which is particularly critical in vehicle fires where fuel sources may be present.