Final answer:
For better control and stability when using the hand over hand technique of steering, keeping palms down is recommended as it allows for smooth transitions and reduces the risk of wrist injury during vehicle steering.
Step-by-step explanation:
When using the hand over hand technique of steering, it is generally recommended to keep palms down. This refers to moving the hand from the palm backward position to the palm forward position when manipulating the steering wheel of a vehicle. The technique allows for smooth transitions and better control of the steering wheel during turns. In this context, palms down promotes stability and can reduce the risk of wrist injury. This method is in contrast to underhand steering, which can be less secure in maintaining grip on the wheel during more significant steering maneuvers.