Technician A says that a driveshaft with U-joints speeds up and slows down twice per full rotation.Technician B says that minimize torsional vibrations,U-joint working angles should be set as high as possible.Who is correct?

Question

Quizplus · Accepted Answer

Technician A is correct because a driveshaft with U-joints does indeed speed up and slow down twice per full rotation due to the varying angular velocity caused by the U-joint's design. Technician B is incorrect because to minimize torsional vibrations, U-joint working angles should be kept as low as possible, not as high as possible, to ensure smoother operation.

Technician a Says That a Driveshaft with U-Joints Speeds Up