The forward cargo detection uses how many detectors?

• A. Two smoke detectors
• B. Three smoke detectors
• C. Four smoke detectors
• D. One smoke detector

Answer: (B)

Fire detection in the forward cargo area relies on multiple sensors to ensure reliable warning and quick response. Using three smoke detectors provides coverage across the major zones of that forward compartment and adds redundancy: if one detector is blocked or experiences a fault, the other two can still detect smoke and trigger an alarm. This balance of thorough coverage with practical considerations like weight and complexity is why three detectors are used. Two detectors could leave a blind spot, one detector is too risky for a critical area, and four would add more cost without a proportional gain in essential protection for this location.