Technician A says that two U-joints are used on a driveshaft to prevent vibration. Technician B says that the more equal the U-joint angles, the less chance of driveshaft vibration. Which technician is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. Technician A is correct because using two U-joints in a driveshaft helps to cancel out angular velocity variations, reducing vibration. Technician B is correct because having equal U-joint angles at each end of the driveshaft helps ensure smooth rotation and minimizes vibration.

Technician a Says That Two U-Joints Are Used on a Driveshaft