Technician A says that grooves in the tire tread are necessary for excellent dry traction. Technician B says that grooves in the tire tread are necessary for wet traction, to prevent hydroplaning. Which technician is correct?

Question

Quizplus · Accepted Answer

Grooves in the tire tread are primarily designed for wet traction, allowing water to escape from under the tire to prevent hydroplaning. For dry traction, the amount of rubber contact with the road is more critical, and grooves are not as necessary.

Technician a Says That Grooves in the Tire Tread Are