Question

two technicians are discussing proper cleaning of the hub and rotor surfaces, before starting the match machining process. technician a says that if the rotor is secured to the hub from the factory using two small screws/bolts or retainers that there is no need to remove the rotor and clean behind it. technician b says that if the vehicle has captive rotors (such an early 1990 honda accord) and there is no need to disassemble the rotor hub assembly for cleaning purposes. who is correct?
technician a
technician b
both technician a and technician b
neither technician a nor technician b

Explanation:

Even if the rotor is secured by small screws/bolts or retainers from the factory, debris can still accumulate behind it and affect the match - machining process, so Technician A is incorrect. Captive rotors may also have dirt and contaminants that need cleaning, and disassembling for cleaning is often necessary to ensure proper operation and machining results, so Technician B is incorrect.

Answer:

Neither Technician A nor Technician B