In which of the following situations should you use "fixed-hand" steering?

Using "fixed-hand" steering is particularly appropriate when changing lanes. This technique involves keeping both hands on the steering wheel in a fixed position, allowing for better control of the vehicle when you need to make subtle adjustments to your lane position.

When changing lanes, it's important to maintain a steady grip to ensure that the vehicle remains straight and stable as you navigate from one lane to another. The fixed-hand technique helps provide maximum control and responsiveness to any sudden movements or obstacles that may arise during the lane change.

In contrast, while parking, driving in reverse, or making U-turns typically require more intricate steering maneuvers, like pulling the wheel using the push-pull method or hand-over-hand technique, which enhance control in tighter situations or require sharper turns. Each of these situations has its own steering technique that is more appropriate than fixed-hand steering.