2. 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.
Correct Answer: turning radius of the left and right wheels
8. The function of oil-control rings is that it
Options
A. lubricates the cylinder wall by releasing oil from its hole
B. keeps the cylinder wall lubricated by holding oil in its channel
C. prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan
D. maintains a seal and prevents escape of burned gases and oil leakage
Correct Answer: prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan
9. The function of a first compression ring (top ring) is that it
Options
A. increases the combustion temperature
B. creates swirl
C. maintains a seal and prevents the fuel leakage
D. maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber