Answer :
Final answer:
Technician A highlights the importance of adhering to drum diameter limits, while Technician B focuses on the machining of brake drums. Both technicians are correct in their statements.
Explanation:
Technician A is correct that brake drums should never be machined beyond the maximum diameter designated on the drum, as exceeding this limit can compromise safety and performance.
Technician B is also correct that a brake drum with more than 0.005 inch out-of-roundness should be machined true on a lathe to ensure proper functioning of the braking system.
Therefore, both technicians are correct in their statements as they address different aspects of brake drum maintenance and machining processes.