What type of system primarily uses 1-1/2" hose stations for building occupants?

The Class II system is specifically designed to accommodate the needs of building occupants who may not have extensive training in firefighting. This system primarily utilizes 1-1/2" hose stations, making it easier for individuals to manage small fires and perform initial firefighting efforts.

These hose stations are typically located in accessible areas and are intended to be used by trained building occupants or designated staff. The size of the hose allows for manageable operation, enabling users to effectively control fires before they escalate.

In contrast, Class I systems involve larger hoses and are primarily aimed at firefighters, while Class III systems combine features of both Class I and Class II. Class IV systems do not typically relate to fire department use; instead, they often pertain to specialized alarms or alerts. Therefore, the essential design of the Class II system addresses the practical needs of non-professional users in emergency scenarios, which confirms why this option is the most suitable response.