4. The driveshafts are connected to the differential and wheel hubs through universal joints because the universal joints
Options
A. absorb the vibrations transferred from the surface of the road
B. compensate for variations in the relative positions of the differential and the wheels which result from bumpy road surfaces or other similar driving conditions.
C. absorb any difference in speed between the left and right wheels when the vehicle is turning
Correct Answer: compensate for variations in the relative positions of the differential and the wheels which result from bumpy road surfaces or other similar driving conditions.
5. The anti-knock property of compression ignition engine fuel can be improved by adding
6. The differential ensures that each wheel is driven at a speed which corresponds to the distance it must travel around a corner, and it consequently prevents against excessive tyre wear.