There are no exemptions. You may not drive a commercial motor vehicle if you are disqualified for any reason.
Excessive speeding, reckless driving, erratic lane changes and following a vehicle too closely are all considered serious traffic violations.
The minimum number of days you can lose your CDL if you have committed three serious traffic violations within a three-year period involving a CMV is 120 days.
You will lose your CDL for at least one year if you are caught driving a CMV if your blood alcohol concentration is .04% or higher, if you refuse to undergo blood alcohol testing and if you leave the scene of an accident involving a CMV.
If you are driving 15 mph above the posted speed limit, you are considered to be speeding excessively.
During lane changes, turns, merges or tight maneuvers, you may have to check your mirrors more frequently.
It's best to try to schedule your driving trips for the hours you are typically awake.
Skids caused by acceleration usually occur on icy or snowy surfaces.
If the ABS in your vehicle malfunctions, you need to remember to drive normally as you still have regular brakes. Get the system serviced as soon as you possibly can.
Suspension systems keep the axle in place.
When you are transporting cargo, you should inspect your cargo within the first 50 miles.
To prevent your cargo from being top-heavy, put the heaviest parts of the cargo under the lightest parts.
As a driver hauling cargo, you are responsible for inspecting your cargo, recognizing when your vehicle is overloaded, and knowing when your cargo is secured properly.
Hanging meat in a refrigerated truck can be a very unstable load with a high center of gravity.
When a safety valve releases air, this indicates the pressure has exceed 150 psi, too much air is in the air compressor and something is wrong and you should have this checked by a mechanic.
Water and oil tend to collect at the bottom of the air tank. Water and oil can cause the brakes to fail, and so air tanks need to be drained at the end of each day of driving.
To test your service brakes you need to wait for normal air pressure, release the parking brake, move the vehicle forward slowly and depress the brake pedal firmly.
A driver needs to be able to see a warning when the air pressure in the service air tanks fall below 60 psi.
Stop light switches are necessary because they warn other drivers when a vehicle is braking or coming to a stop.
The exterior baggage compartments of your vehicle should be undamaged, operate properly and latch securely.
It's important for a school bus driver to ensure the emergency exits are undamaged, operating smoothly and able to close securely from the inside.
There are three versions of the Class B pre-trip inspection test. You will only need to perform one of them.
It's necessary to pass the pre-trip vehicle inspection test before you can proceed to the basic vehicle control skills test.
You should carry fire extinguishers, warning devices for parked vehicles and spare electrical fuses (if the vehicle uses them).
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CDL Class C Test #1
