| 3/4 raised with the crank handle removed | |
| Fully raised with the crank handle secured | |
| Fully raised with the crank handle removed | |
| 3/4 raised with the crank handle secured |
| Drive slowly around corners | |
| Avoid quick lane changes | |
| All of these are correct | |
| Drive slowly on on-ramps and off-ramps |
| Carries air controlled by the footbrake or trailer handbrake | |
| Distributes air throughout the cab and to each of the trailers | |
| Supplies air to the footbrake and trailer handbrake | |
| Marks the maximum refill point for air tanks |