When the wheels are turned to full lock on a truck with 3 degrees of positive caster,which of the following should be observed?
A) front bumper on one side should raise slightly and the other side should lower
B) steering wheel should attempt to return to straight ahead when released
C) both A and B are correct
D) neither A nor B are correct

Question

Quizplus · Accepted Answer

Positive caster in a vehicle's wheel alignment causes the steering axis to tilt towards the driver. When the wheels are turned to full lock, this tilt results in one side of the vehicle raising slightly and the other side lowering due to the geometry of the suspension and steering linkage. Additionally, positive caster enhances straight-line stability and causes the steering wheel to return to the straight-ahead position after a turn, due to the wheel's trailing action and the caster angle's self-aligning effect.

When the Wheels Are Turned to Full Lock on a Truck