Technician A says that weak retraction springs can cause rapid lining wear on drum type brakes Technician B says that weak hold-down springs can cause rapid lining wear on drum type brakes Who is right? A. B only B. Neither Anor B C. Aonly D. only.

## Step 1<br />This problem is about the potential causes of rapid lining wear on drum type brakes. The statements made by Technician A and Technician B are both related to the potential causes of rapid lining wear on drum type brakes.<br /><br />## Step 2<br />Technician A suggests that weak retraction springs can cause rapid lining wear on drum type brakes. This is indeed a potential cause. When the retraction springs are weak, they may not be able to retract the brake shoes properly. This can lead to excessive friction between the brake shoes and the drum, which can cause rapid lining wear.<br /><br />## Step 3<br />Technician B suggests that weak hold-down springs can cause rapid lining wear on drum type brakes. This is also a potential cause. When the hold-down springs are weak, they may not be able to hold the brake shoes in the correct position. This can also lead to excessive friction between the brake shoes and the drum, which can cause rapid lining wear.