NEBOSH Practice Test

Which of the following is an example of active fire protection?

1. Fire hydrants

2. Fixed foam systems

3. Electrical shut-off systems

4. Emergency exits

The correct answer is: Fixed foam systems

Active fire protection refers to systems and methods that actively engage in firefighting or fire suppression, typically involving mechanisms that can be activated when a fire is detected. Fixed foam systems fall into this category because they are specifically designed to extinguish fires by discharging foam that smothers the flames, reducing the oxygen available to sustain the fire and cooling the heat. These systems require an active response to a fire event, making them effective in suppressing fires. In contrast, elements like fire hydrants serve as a passive resource for firefighters, providing water but not engaging actively until firefighters operate them. Electrical shut-off systems can prevent further hazards but do not actively suppress fire events. Emergency exits are crucial for safety during a fire but are not considered a method of fire protection; they facilitate safe egress rather than directly combating or controlling a fire.