How many fire detectors are in the forward cargo compartment?

How many fire detectors are in the forward cargo compartment?

• A. 1
• B. 2
• C. 3
• D. 4

Answer: (C)

Fire detection coverage in a cargo compartment relies on multiple sensors placed to monitor different areas so a fire anywhere in that space is detected early and reliably. For the forward cargo compartment on this aircraft, three detectors are installed to provide full coverage across the hold and to maintain redundancy. With three detectors, a fire in any part of the forward hold will trigger a warning promptly, and if one detector were to fail, the remaining detectors would still provide detection. This setup strikes a balance between sufficient coverage and system simplicity, which is why three detectors is the correct count.

Fire detection coverage in a cargo compartment relies on multiple sensors placed to monitor different areas so a fire anywhere in that space is detected early and reliably. For the forward cargo compartment on this aircraft, three detectors are installed to provide full coverage across the hold and to maintain redundancy. With three detectors, a fire in any part of the forward hold will trigger a warning promptly, and if one detector were to fail, the remaining detectors would still provide detection. This setup strikes a balance between sufficient coverage and system simplicity, which is why three detectors is the correct count.