How many baggage smoke detectors are installed and what type are they?

How many baggage smoke detectors are installed and what type are they?

• A. 2 (forward and aft) Optical Type
• B. 3 (forward, mid, aft) Ionization Type
• C. 1 (center) Optical Type
• D. 4 (fore, aft, mid, overhead) Photoelectric Type

Answer: (A)

Two baggage smoke detectors are installed, positioned in the forward and aft baggage compartments to cover the entire baggage area. They’re optical (photoelectric) type detectors, which use a light source and sensor; when smoke particles scatter the light into the sensor, the alarm triggers. This arrangement provides reliable detection for the kinds of smoke produced by luggage fires and tends to have fewer nuisance alarms in a dusty baggage environment than ionization types. Having only a center detector wouldn’t monitor both ends of the baggage area, and adding more detectors would be unnecessary given the layout.

Two baggage smoke detectors are installed, positioned in the forward and aft baggage compartments to cover the entire baggage area. They’re optical (photoelectric) type detectors, which use a light source and sensor; when smoke particles scatter the light into the sensor, the alarm triggers. This arrangement provides reliable detection for the kinds of smoke produced by luggage fires and tends to have fewer nuisance alarms in a dusty baggage environment than ionization types. Having only a center detector wouldn’t monitor both ends of the baggage area, and adding more detectors would be unnecessary given the layout.