Automobile Engineering in ME
A petrol engine of a car develops 125 Nm torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then the torque available at the driving wheels is

8091 Nm
8.091 Nm
80.91 Nm
809.1 Nm

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

One drive shaft is splined to the central gear and the other to the planetary gear.
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.

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