Once the temperature drops to freezing, some sections of road will start to freeze before others. The first to freeze will be shaded areas and bridges. If the road appears wet, it may be covered in black ice, a thin layer of slippery ice through which you can see the road.
While driving at night, you should use your high beams to see farther as long as it is safe and legal and you will not blind any other drivers. Section 2.11.5 of the Arizona Commercial Driver License Manual recommends that you dim your headlights whenever you are within 500 feet of any other vehicle.
Escape ramps are designed with soft gravel, upgrades, or both, to slow down vehicles that experience brake failure on a downgrade. Regardless of your speed, look for one of these escape ramps, which can save lives, equipment, and cargo. Find out ahead of time where the escape ramps are located on your route.
Whether the conversation takes place face-to-face or through a cell phone, text messaging, or CB radio, it still requires a driver's attention and may distract the person.
The gear box is an integral part of the steering system. The other three choices are parts of the suspension system.
