Which of the following is a common cause of loss of control when driving?

Excessive speed on turns is indeed a common cause of loss of control when driving. When a vehicle navigates a turn, the forces acting on it change, particularly concerning centrifugal force. If a driver is traveling too fast for the conditions or the curvature of the road, it can exceed the tire's grip on the surface. This can lead to oversteering or understeering, causing the vehicle to skid or lose traction altogether.

In contrast, rapid acceleration in a straight line may lead to other issues but isn’t specifically tied to loss of control like excessive speed in turns. Maintaining a steady speed and driving within speed limits generally promotes stability and control, particularly in the context of managing curves and turns. These practices help ensure that a driver can react appropriately to changes in the road or traffic conditions, thereby reducing the likelihood of losing control.