Arkansas CDL Doubles and Triples Practice Test 2026 – Comprehensive Exam Prep

Slowing to a safe speed before the curve and then accelerating slightly through it gives you the best control. Reducing speed first reduces lateral forces on the tractor and trailers, helping the vehicle follow the intended path and maintain traction. Once you’re in the curve, a light acceleration helps keep the momentum and prevents the weight from shifting forward too aggressively, which can lead to instability or a trailer swing. Braking hard before or in the curve loads the front axle and can push the trailer toward a skid or jackknife. Staying at highway speed offers too little traction to handle the curve safely, and turning the wheel sharply at the curve’s start creates abrupt steering inputs that can upset balance, especially with doubles or triples.