Final answer:
The 'weather' control on a ship's autopilot is adjusted to compensate for yawing, which occurs when the vessel rotates around its vertical axis due to severe weather conditions such as strong winds or currents. Option C is correct.
Step-by-step explanation:
When a vessel is on autopilot steering, the "weather" control is adjusted to compensate for c) Yawing. Yawing refers to the rotation of a ship around its vertical axis. This phenomenon can cause a ship to veer off its intended course, particularly when severe weather conditions, such as strong winds or currents, act upon the vessel.
The weather control function within the autopilot system is designed to counteract these effects by automatically making adjustments to the rudder in order to maintain the set course.
The correct answer is c) Yawing. When a vessel is on autopilot steering, the weather control is adjusted to compensate for the severe weather effect of yawing. Yawing refers to the side-to-side swinging motion of the vessel. Autopilot systems use sensors to detect yawing and make corrections to keep the vessel on its intended course.