Potential problems to check for when inspecting brakes include cracked drums; shoes or pads with oil, grease, or brake fluid on them; and shoes that are missing, broken, or worn dangerously thin.

Passing an accident scene can be hazardous because the people involved in the accident may not be watching traffic, and the scene itself may distract other passing drivers. Ice cream trucks can create hazardous conditions because they attract children who may not pay attention to nearby vehicles. Shoppers near the roadway are often paying attention to stores, not passing traffic.

To test hydraulic brakes, you should pump the brake pedal three times, then apply firm pressure to the brake pedal and hold for five seconds. The pedal should not move. If it does, there may be a leak.

When driving on packed snow, you should reduce your speed by one-half or more. It can be difficult to stop or turn when operating on a slippery surface, so you must adjust your speed to drive safely under such conditions.

It is always safest to assume that other drivers, bicyclists, and pedestrians don't see you. Be prepared for the possibility that they may suddenly move into your path. It may be safe to lightly tap your horn or flash your lights as you pass.

Texting while driving a commercial motor vehicle is both illegal and dangerous. Manually entering text into or reading text from any electronic device is considered texting.

If you are fatigued, you will not see or react to hazards as quickly as you would if you were fully energized and awake. You will be impaired in making critical decisions.

When driving at night, it is important that your lights be clean so that they provide as much light as possible. This will help others to see your vehicle.

For the safety of everyone on the road, it is essential that you maintain adequate cushions of space between your vehicle and other vehicles. This will help ensure that if you need to stop your vehicle, you will be able to do so without hitting someone else.

You should always make sure that your vehicle will be able to stop within the area of the road that you are able to see. This means that you must slow down whenever conditions reduce visibility.

To prevent rolling backward when starting from a stop, you should partly engage the clutch before removing your foot from the brake. Apply the parking brake whenever necessary to prevent your vehicle from rolling back.

Bus passengers must not be allowed to leave baggage in doorways or aisles during a trip. Baggage and freight must be secured in a way that will allow the driver to move freely and easily; allow riders to exit by any window or door in an emergency; and protect riders from injury if items fall or shift.

Using the brakes after a tire failure could cause you to lose control of your vehicle. Unless you're about to hit something, stay off of the brake until the vehicle has slowed sufficiently.

Buses must never carry labeled radioactive materials in the area occupied by passengers.

People sometimes damage unattended buses. Before driving a bus that has been unattended, you should check the interior to confirm that everything is in proper condition.

When inspecting your tires, verify that there is at least 4/32 of an inch of tread depth in every major groove on the front tires, and tread depth of at least 2/32 of an inch on the other tires. Tires on the same vehicle should all be the same size.

When inspecting the engine compartment, you should check the oil level, coolant level, and windshield washer fluid level, among other things.

While driving, you should consistently check the road ahead for hazards. Develop a plan to deal with any hazards that could arise.

Press the brake pedal down smoothly and gradually every time you slow or stop. The amount of brake pressure you need to apply depends on the speed of your vehicle and how quickly you need to stop.

When passing a pedestrian or another vehicle, you should assume that they don't see you.