CDL General Knowledge Practice Test

When brakes are wet, gently applying the brakes while increasing engine RPM is recommended because this action helps in removing moisture from the brake components without causing a sudden loss of control. Wet brakes can lead to reduced braking performance and might cause a vehicle to skid or take longer to stop. By gently applying the brakes, drivers can create friction that helps evaporate the moisture, restoring the effectiveness of the brakes gradually. This method is preferred over sudden braking, which can lead to skidding or loss of control due to water causing the brakes to not grip effectively. Gradually increasing speed allows the vehicle to adjust smoothly rather than abruptly, which can be dangerous with wet brakes. Stopping immediately could be unsafe, particularly in situations where continuing to drive can be managed without endangering yourself or others.