Passenger Safety, Loading, and Vehicle Capacity
What you must know
Capacity is a legal and physical limit. Know the difference between gross vehicle weight rating, gross combination weight rating, axle weight limits, and the payload you can actually carry. Overloading affects braking, steering, and tire stress, and it can void insurance and violate weight laws. Loads must be secured against shifting, and the securement system must match the load type: straps, chains, binders, and edge protection for sharp edges. Loads that can shift must be blocked or braced.
For passenger operations, the concepts are boarding and alighting safety, seat belt use, emergency exits, and behavior management. Know where the exits are and how to operate them, and know that passengers must be seated and secure before the vehicle moves. Standing passengers are permitted only where the vehicle and jurisdiction allow it.
Traps to expect
Questions test whether you know that a load can be legal by weight but unsafe by distribution. A load that exceeds an axle rating is a violation even if total weight is under the gross limit. Securement questions reward the answer that uses the correct number of tiedowns and the correct working load limit. Passenger questions reward refusing to move until everyone is seated and secure, and they penalize the driver who lets a passenger stand in a moving vehicle to save time.
Worked example: A load weighs less than the gross limit but sits too far back, overloading the rear axle. The correct fix is to redistribute or reposition the load, not to add air to the tires or drive more slowly.
Rule of thumb: weight must be within every limit, not just the total, and every load must be secured against the forces of braking and turning.