Technician A says that when extending a tempered frame rail,the extension channel does not have to be tempered so long it is at the rear of the truck.Technician B says that when extending a tempered frame rail,either a 45- or 60-degree cut-angle is recommended to avoid a sudden change in RBM over a given vertical section.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct because using a 45- or 60-degree cut-angle when extending a tempered frame rail helps distribute stress more evenly, reducing the risk of a sudden change in Resisting Bending Moment (RBM) over a given vertical section. Technician A is incorrect because the extension channel should also be tempered to ensure the strength and integrity of the frame rail are maintained, especially for safety and durability reasons.

Technician a Says That When Extending a Tempered Frame Rail,the