While Having a Discussion, Technician a Says That the Synchro

Multiple Choice

While having a discussion, Technician A says that the synchro allows two gears spinning at different speeds to mesh without clashing. Technician B says that it blocks the shift and equalizes the speed between two moving gears using cone clutch action. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B