Where is the ionization type smoke detector found?

• A. Lavatory and electronics rack.
• B. Cargo hold.
• C. Engine compartment.
• D. Crew quarters.

Answer: (A)

Ionization-type smoke detectors are designed to respond quickly to flaming fires, because they sense the tiny ionized particles produced by flames. This makes them a good fit for places where a fast, small flame could ignite from electrical faults or other quick-starting sources. In aircraft, lavatories and electronics racks are areas where early flame activity is more likely, so an ionization detector is placed there to provide rapid warning. Other areas, like cargo holds or engine compartments, deal with different smoke characteristics and harsher environments, so they often use detector types or configurations better suited to those conditions. So, the ionization detector is typically found in lavatories and electronics racks.