Question

product knowledge braking systems level 1
______ is the only way to return the disc brake system to
original thickness for maximum heat dissipation.
turning the rotor
replacing the rotor
keeping the existing rotor
machining the rotor

Explanation:

To return a disc brake rotor to its original thickness for maximum heat dissipation, replacing the rotor is the correct approach. Turning, keeping, or machining the existing rotor doesn't restore it to the original thickness (machining/turning removes material but doesn't bring back lost thickness, and keeping it as is maintains the worn state). Replacing it with a new rotor ensures the original thickness is achieved.

Answer:

B. Replacing the rotor