Georgia CDL Air Brakes Test case studies
Georgia CDL Air Brakes Test · Put your knowledge to work in context.
The Georgia CDL Air Brakes knowledge test is the written component a driver must pass to have an air brake restriction removed from a Georgia commercial learner's permit or commercial driver's license. It is aimed at drivers who will operate vehicles equipped with air brakes - tractor-trailers, dump trucks, buses, and heavy straight trucks - and it is required in addition to the general knowledge test. The Georgia CDL Air Brakes Test case studies are 5 cases and about 2,867 words.
1Slow Compressor Build Time on a Straight Truck
At a Savannah distribution center, a driver is assigned a 26,000-lb GVW straight truck for a 180-mile run. During the morning inspection, the air system is fully charged and the engine is idled at fast idle.
594 words, about 3 min2Secondary Circuit Failure at Highway Speed
On I-16 near Macon, a driver of a loaded tractor-trailer is exiting when he hears a loud pop from the tractor. The red secondary air gauge drops from 105 psi to 0 psi; the green primary gauge remains at 100 psi.
594 words, about 3 min3Trailer Slack Adjuster and Damaged Components
During a pre-trip inspection at an Atlanta terminal, a driver checks the brakes on a 3-axle tractor with a 2-axle trailer. The left trailer slack adjuster shows 2 1/4 inches of pushrod travel; the right shows 1 7/8 inches.
567 words, about 3 min4Combination Vehicle Leak Rate Test
At a Georgia weigh station, a driver performs an air leakage test on a tractor-trailer. The system is charged to 120 psi, the engine is off, the parking brake is released, and the wheels are chocked.
549 words, about 3 min5Brake Fade on a 6 Percent Grade
On a 6 percent downgrade in north Georgia, a driver is descending a 3-mile grade with a loaded tractor-trailer weighing about 40,000 lb. The speed limit is 45 mph.
563 words, about 3 min