Technician A says that as driveshafts speeds increase,permissable U-joint working angles also increase.Technician B says that when a truck diesel engine is run at a rated speed and the transmission is in overdrive,driveshaft speeds can exceed 3000 rpm.Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because driveshaft speeds can indeed exceed 3000 rpm, especially when a truck's diesel engine is run at rated speed with the transmission in overdrive. Technician A is incorrect because permissible U-joint working angles decrease as driveshaft speeds increase, to avoid excessive vibration and wear.

Technician a Says That as Driveshafts Speeds Increase,permissable U-Joint Working