What are the two main types of fire alarms?

The two main types of fire alarms are classified as manual and automatic. Manual fire alarms require a person to activate them, typically through a pull station or a similar device. This allows individuals to alert others about the presence of a fire, providing a critical response framework in emergency situations, especially in facilities with a higher risk of fire or where quicker human intervention is essential.

Automatic fire alarms, on the other hand, operate without human intervention. They are designed to detect signs of fire, such as smoke or heat, and automatically sound an alarm to alert occupants and initiate response protocols. This type of alarm enhances safety as it can respond to a developing fire in the absence of individuals, thereby providing an earlier warning and potentially saving lives and property.

Both types are essential components of a comprehensive fire safety plan, serving different functions in fire detection and alarming systems. The other answer choices do not accurately describe the primary classifications of fire alarms; thus, manual and automatic is the most appropriate categorization.