Which equipment should always be available during firefighting activities?

Fire extinguishers are essential equipment that should always be available during firefighting activities. They are designed specifically to combat fires and come in various types, each suitable for different kinds of fires based on the materials involved. Having fire extinguishers readily accessible ensures that personnel can respond promptly to small fires before they escalate, making them a critical part of any firefighting strategy.

In contrast, while wrenches may be useful for certain maintenance or adjustment tasks, they are not directly related to firefighting. Personal computers are not functional in firefighting scenarios, as their primary purpose lies in data management and communication, not fire suppression. Extra uniforms, while helpful for maintaining proper attire, do not contribute to firefighting efforts in any way. The presence of fire extinguishers is therefore crucial for safety and effective fire response in all firefighting situations.