You are in a structure with a sprinkler head that has been activated. You are asked to go back to the sprinkler riser and shut down the system. When you get there, you find a single outside screw and yoke (OS&Y) valve. Which of these indicates that you have the system shut off?

Which of these means to remove the hose from the hose bed or other storage location?

The team leader for an interior attack crew hears one of the team member’s low-air alarm activating. What should the team leader do?

What is the “one-bottle rule”?

Which fire apparatus is equipped with the correct configuration of portable extinguishers, according to NFPA 1900?

What needs to be done in order to develop proper ventilation tactics?

A water extinguisher is contraindicated for which fire scenario?

What considerations should firefighters have when presented with a building under construction?

Advancing a hose line down a stairway can be dangerous. What will the firefighters most likely be operating in that is dangerous?

At what temperature does steel lose half of its strength?