At what temperature do the temperature sensors activate the DUCT TEMP light?

The DUCT TEMP light in the T-6A is designed to activate when the temperature of the duct exceeds a certain threshold that indicates potential overheating conditions.

In this case, the correct activation temperature for the DUCT TEMP light is at 300 degrees Fahrenheit. This specific temperature is critical for maintaining safety and operational integrity within the aircraft's systems. If duct temperatures reach this level, it serves as a warning to the pilot that immediate attention is required to prevent potential damage or hazardous situations caused by overheating. Monitoring and understanding these temperature thresholds is essential for safe aircraft operation.

The other options represent temperatures that are either too low or too high to trigger the alert, emphasizing the importance of the designated threshold for effective safety protocols in flight operations.