TFM 12 Fire Alarm Technical Practice Test

A heat detector can indeed be integrally mounted on a smoke detector, which enhances the device's capability to respond to different types of fire incidents. This combination allows the system to detect smoke particles, which indicate fire at early stages, as well as changes in temperature that suggest a fire may be present even before smoke is visible.

Heat detectors are designed to respond to specific temperature changes or rates of temperature increase, making them a reliable complement to smoke detectors. When both types are combined, they provide a more comprehensive level of monitoring and increased safety in a building. Such integrated systems are particularly effective in environments where smoke might not be the first sign of a fire, or where false alarms from smoke alone can be a concern.

The other options, while they have their important roles in fire safety, typically function as separate devices and are not designed to be integrally mounted within a smoke detector.