Control & OperationQuestion 69 of 120
What is off-tracking, and why does it matter in turns?
a.The trailer rides a wider path than the tractor, so you must stay left
b.The rear wheels follow a shorter path than the front wheels, so the trailer can cut across curbs, poles, or an adjacent lane
c.The vehicle drifts backward on an upgrade
d.The trailer brakes apply before the tractor brakes
Explanation
Because the rear wheels track inside the path of the steer axle, the longer the vehicle the more the rear cuts the corner. Trailers do not swing wider than the tractor in a turn, and rollback and brake timing are separate issues.
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