While having a discussion about the Ravigneaux gearset, Technician A says that in overdrive, the direct clutch drives the planetary carrier clockwise, causing the long pinions to walk clockwise around the held large sun gear. Technician B says that this occurs in third gear. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct that in overdrive, the direct clutch drives the planetary carrier clockwise, causing the long pinions to walk clockwise around the held large sun gear. Technician B is incorrect in stating that this occurs in third gear, as the Ravigneaux gearset is a planetary gearset used in automatic transmissions that generally have multiple speeds.

While Having a Discussion About the Ravigneaux Gearset, Technician a Says