Arizona CDL Knowledge Test Class B: Practice Test - Practice Test 2

ABS malfunction lamps indicate that something in the Anti-Lock Braking System is not working properly.

In general, you should always use the parking brake when parking your vehicle. However, you should not apply the parking brake if your brakes are very hot or if your brakes are wet and temperatures are below freezing.

When exiting your vehicle during the basic vehicle control skills test, you must face the vehicle and maintain three points of contact at all times. If your testing vehicle is a bus, you must maintain contact with the handrail. Exiting the vehicle incorrectly may result in automatic failure of the basic vehicle control skills test.

Before beginning a trip, it is important to check the brake drums during your walk-around inspection. It is unsafe to drive if any brake drum has a crack more than one half of the width of the friction area.

Proper loading and securement of cargo is essential for safety. Improperly loaded cargo could damage a vehicle, as well as cause injury or death by falling off in a collision or sudden stop.

Texting and driving is dangerous for everyone on the road. It is illegal to text while operating a CMV.

If you begin to feel tired while driving, the only safe action to take is to stop and get some sleep. Trying to fight the fatigue and press on is very dangerous and can result in a fatal crash. You should not rely on artificial stimulants; these may help keep you awake a while longer, but they won't make you more alert.

A common cause of vehicle fires in the aftermath of an accident is the improper use of flares near spilled fuel. Use flares with caution.

All commercial motor vehicles are required to be equipped with the proper emergency equipment. This may include spare electrical fuses; three red reflective triangles, six fuses, or three liquid burning flares; and at least one properly charged and rated fire extinguisher.