In a residential alarm system, fire detection devices must:

In a residential alarm system, fire detection devices must:

• A. cause an alarm that is clearly audible in all bedrooms
• B. provide only a visible alert at the control panel
• C. trigger automatically only during daylight hours
• D. require manual activation to alert

Answer: (A)

Fire detection devices are there to give immediate, all-house warning so everyone can evacuate safely. The most reliable way to achieve that is to produce a clearly audible alarm that can be heard throughout the home, including in sleeping areas like bedrooms. If the alert were only a message at the control panel or depended on someone waking up and checking the panel, occupants in bedrooms might miss it. Fires can start at any time, so the alarm must function around the clock, not just during daylight hours. And it should trigger automatically when smoke or heat is detected, not require someone to activate it manually. That audible, house-wide warning is why this is the best answer.

Fire detection devices are there to give immediate, all-house warning so everyone can evacuate safely. The most reliable way to achieve that is to produce a clearly audible alarm that can be heard throughout the home, including in sleeping areas like bedrooms. If the alert were only a message at the control panel or depended on someone waking up and checking the panel, occupants in bedrooms might miss it. Fires can start at any time, so the alarm must function around the clock, not just during daylight hours. And it should trigger automatically when smoke or heat is detected, not require someone to activate it manually. That audible, house-wide warning is why this is the best answer.