Medium and heavy duty vehicles require a better braking option hence they ought to have an exhaust brake.
A brake is used to slow down or stop an automobile. When the brake is applied, the speed of the automobile continues to decrease until it comes to a complete halt.
Friction brakes are apt for light vehicles that may not have the tendency to overheat. However, heavy duty vehicles may overheat often and do require an exhaust brake.The exhaust brake is most fitted for heavy duty vehicles and diesel engines.
Learn more about brake:https://brainly.com/question/24381230
#SPJ4