Rhode Island Boater Practice Test

Which action may cause the loss of steering ability in a PWC?

1. Running at max throttle

2. Letting off the throttle control

3. Turning too quickly

4. Turning too slowly

The correct answer is: Letting off the throttle control

Letting off the throttle control in a personal watercraft (PWC) can indeed result in the loss of steering ability. When you reduce or release the throttle, the PWC loses forward momentum, which is essential for the effective function of its steering system. Unlike traditional boats that have rudders, PWCs rely on water flowing over the jet nozzle to create steering control. When the throttle is cut, the flow of water diminishes, leading to a phenomenon known as "cavitating," where the water jet cannot effectively steer the craft. This loss of thrust can make it difficult to maintain directional control, especially at higher speeds. In contrast to this, operating at maximum throttle, turning too quickly, or turning too slowly allows the PWC to maintain sufficient forward thrust, which is necessary for steering effectiveness. When the throttle is fully engaged, the steering capabilities are optimal, and while turning too rapidly might increase the risk of losing control, it still allows for directional steering, unlike letting off the throttle.