Basic Firefighter Written Practice Exam

Which two types of ventilation are commonly recognized in firefighting?

1. Vertical and Lateral

2. Horizontal and Vertical

3. Active and Passive

4. Open and Sealed

The correct answer is: Horizontal and Vertical

In firefighting, the commonly recognized types of ventilation include horizontal and vertical ventilation. Horizontal ventilation involves the removal of smoke and heat from a structure by creating openings in the walls or windows. This technique is especially useful in preventing smoke from spreading to other areas of the building and provides a clear path for both the exit of heated gases and the entry of fresh air. On the other hand, vertical ventilation focuses on removing smoke, heat, and toxic gases by making openings in the roof or upper areas of the structure. This method allows for a direct escape route for smoke and heat to rise and exit, creating a safer environment for firefighting efforts and helping to reduce the potential for fire spread. Understanding these two types of ventilation is crucial for effective firefighting strategy, as they influence how firefighters approach fire suppression and rescue operations.