When cylinders are involved in fire, it is best to:

When cylinders are involved in fire, it is best to:

• A. Use two 1-3/4 inch handlines to approach the cylinder.
• B. Use large amounts of water applied from a safe distance.
• C. Use unmanned master streams to protect exposures and solid streams for approach.
• D. Evacuate the area as the cylinder will explode.

Answer: (B)

When a cylinder is involved in a fire, the priority is to remove heat from the cylinder to prevent a violent failure. Water is the most effective way to absorb that heat, so applying large volumes of water from a safe distance to cool the cylinder and the surrounding fire is the best approach. This cooling lowers the risk of catastrophic rupture, protects exposures, and helps control the overall incident without placing crews in direct, dangerous proximity to the heat and potential blast. Using small handlines up close tends to be less effective at cooling quickly and increases personal risk. Unmanned master streams can be part of the tactic, but the main idea is to deliver abundant water from a safe distance to soak the cylinder and fire. Evacuation may be necessary if conditions deteriorate, but cooling with water is the most protective and effective option when cylinders are involved.

When a cylinder is involved in a fire, the priority is to remove heat from the cylinder to prevent a violent failure. Water is the most effective way to absorb that heat, so applying large volumes of water from a safe distance to cool the cylinder and the surrounding fire is the best approach. This cooling lowers the risk of catastrophic rupture, protects exposures, and helps control the overall incident without placing crews in direct, dangerous proximity to the heat and potential blast. Using small handlines up close tends to be less effective at cooling quickly and increases personal risk. Unmanned master streams can be part of the tactic, but the main idea is to deliver abundant water from a safe distance to soak the cylinder and fire. Evacuation may be necessary if conditions deteriorate, but cooling with water is the most protective and effective option when cylinders are involved.