Commercial Driver License (CDL) Class B Practice Test

When approaching a curve, the safest practice for a driver is to slow down before entering the curve. This allows for better control of the vehicle and reduces the risk of losing traction, especially on a curve where centrifugal force can push the vehicle outward. Slowing down gives the driver a chance to carefully navigate the curve without the risk of skidding or rolling over, particularly in larger vehicles that require more time and space to maneuver. Maintaining speed throughout a curve can lead to difficulties managing the vehicle's handling, while speeding up as one enters the curve can significantly increase the risk of accidents, as it may cause the vehicle to lose grip on the road. Using the shoulder of the road is typically not advisable, as it can create hazards and is often not permitted when managing a curve on a roadway. Therefore, reducing speed prior to the curve is essential for safe driving practices.