Automobile Engineering in ME
Which one of the following statements correctly describes the construction of a planetary gear type differential?

The six planetary pinions rotate in constant mesh with the internal gears.
The internal gear is fixed to the planetary gear.
Each planetary pinion gear meshes with both the central gear and the internal gear.
One drive shaft is splined to the central gear and the other to the planetary gear.

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Automobile Engineering in ME
The ball joints are used on the tie rod ends, because they

Can deal with movement of the suspension both vertically and in other directions
Reduce the amount of sliding resistance
Improve the force transmission speed
Reduce the amount of noise generated

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