A driver complains that his front tires are wearing excessively at the center of the tread surface. Techni-
cian A says the wear problem is caused by underin-
flation. Technician B says the problem is caused by
excessive camber. Who is right?
(A) A only.
(B) B only.
(C) Both A & B.
(D) Neither A nor B.

The correct option is;

Neither A nor B

Explanation:

The location of the where the thread wears in tire that has too high inflation is at the thread pattern center due to the reduced size of the contact patch with the load of the car resting on the central portion of the tire's contact surface

When the wear occurs at the outer edges of the tire, the load of the car rests on the outer edges as the contact patch increases due to the tire being under-inflated

Camber is the slope provided in road pavement to drain off water from the road

Roads with camber has a raised middle portion and wear due to camber includes outer-edge tread wear, inner-edge tread wear and tire feathering

answer:

a

explanation: