Tire construction is being discussed. Technician A says the carcass of a tire consists of steel beads around the rim and layers of cords or plies that are bonded together to give the tire its shape and strength. Technician B says casing is the layer of rubber that contacts the road and contains a distinctive pattern to provide the desired traction. Who is correct?

Question

Quizplus · Accepted Answer

Technician A is correct in describing the construction of the tire carcass, which includes steel beads and layers of cords or plies.

Technician B, however, is incorrect in describing the casing as the layer of rubber that contacts the road. The casing refers to the structure of the tire that holds the plies together and provides stability. The layer of rubber that contacts the road is called the tread, which contains the distinctive pattern to provide traction.

Tire Construction Is Being Discussed