Final answer:
The correct answer is option d. neither technician a nor b. The back coupon for a Honda brazed weld should not be bent at a 90 degree angle, and neither technician is correct.
Step-by-step explanation:
Neither Technician A nor Technician B is correct. The back coupon for a Honda brazed weld should not be bent at a 90 degree angle, nor should it be left unbent. Instead, the back coupon should be bent at a certain angle based on the manufacturer's specifications.
When conducting a brazed weld on a Honda vehicle, the back coupon should typically be bent to a specific angle between 45 and 60 degrees. This angle allows for proper fusion and adhesion between the base metal and the brazing material, ensuring a strong and durable weld.
It's important to follow the manufacturer's specifications and procedures when performing any welding or repair work on a vehicle to ensure the best results and maintain the structural integrity of the vehicle.
The back coupon should not be deliberately bent as part of the test; instead, it should be examined after the welding process for any evidence of defects or inadequate penetration without any additional manipulation like bending at 90 degrees. This examination ensures that the structural integrity of the weld is maintained and that the quality of the weld can be assessed in its original state.