Final answer:
The INT XMSN OIL TEMP or TAIL XMSN OIL TEMP warning lights typically activate at temperatures which could range from about 130 to 150 degrees Celsius, but the specific activation temperature can vary by the aircraft or vehicle's make and model.
Step-by-step explanation:
The question pertains to the temperature at which either the INT XMSN OIL TEMP (Internal Transmission Oil Temperature) or TAIL XMSN OIL TEMP (Tail Transmission Oil Temperature) warning lights activate. This is a specific detail related to aviation, helicopter operation, or vehicular engineering. The temperature at which these warning lights activate would vary based on the make and model of the aircraft or vehicle and should be detailed in the operator's manual or maintenance documentation. However, a typical range might be around 130 to 150 degrees Celsius as a general reference point. It is crucial that operators know this temperature to maintain the safe operation of the machinery and prevent potential damage due to overheating.