Ohio Volunteer Firefighter Practice Exam

What observation is important for the Incident Commander regarding bowstring trusses?

1. Identify the age of the building

2. Look for signs of truss roof

3. Check for nearby utilities

4. Analyze exterior painting

The correct answer is: Look for signs of truss roof

The observation of looking for signs of truss roofs is vital for the Incident Commander due to the structural characteristics and potential hazards associated with bowstring trusses. These types of trusses are commonly used in the construction of older commercial buildings and can create a unique risk during a fire incident. Bowstring trusses have a curved design that allows for larger open spaces underneath, which is beneficial for various types of buildings but poses significant challenges during firefighting operations. When exposed to heat, these trusses can fail rapidly, leading to collapse. By identifying the presence of truss roofs, the Incident Commander can make informed decisions regarding safety protocols for firefighters, as well as strategic planning for firefighting tactics. Understanding the structural characteristics helps in assessing whether the building is likely to withstand the heat and fire or if it poses an imminent collapse hazard. Such knowledge is crucial for prioritizing the safety of personnel, ensuring effective resource deployment, and devising a tactical approach that considers potential risks associated with the bowstring truss design.