Question

the customer complains of a high - pitched squeal whenever the wheels are turning, except when the brakes are applied. technician a says the pads are worn and need replacement. technician b says the rotors are scored and must be replaced. who is correct? select one: a. a only b. b only c. both a and b d. neither a nor b clear my choice

Explanation:

When brake pads are worn, they can cause a high - pitched squeal when the wheels turn (due to the wear indicators making contact). Scored rotors can also contribute to such noises. However, when the brakes are applied, the additional pressure can temporarily stop the squeal (in the case of worn pads, the pad makes full contact with the rotor instead of just the wear indicator; for scored rotors, the pad conforms more to the rotor surface under pressure).

If the pads were worn, the squeal would typically be present when the brakes are applied (as the wear indicator makes contact during braking). If the rotors were scored, the noise might be more consistent and not stop when brakes are applied. A more likely cause could be a foreign object in the brake system, a misaligned caliper, or a problem with the brake hardware (like a worn anti - rattle clip). So neither technician A nor B is correct based on the given symptom description.

Answer:

d. neither A nor B