LA CDL Combination case studies
LA CDL Combination · Put your knowledge to work in context.
The Louisiana CDL Combination Vehicles knowledge test is the written exam a driver must pass to operate a Class A combination vehicle - a tractor pulling a semi-trailer - in Louisiana. The Louisiana Office of Motor Vehicles issues three basic classes of Commercial Drivers Licenses: Class A, Class B, and Class C, and the combination test supports the Class A path, which is the class built around tractor-trailer operation. The LA CDL Combination case studies are 5 cases and about 2,605 words.
1Crossed Glad Hands After Coupling
At a Baton Rouge distribution center, you are assigned a tractor with a 53-foot dry van loaded to 61,000 lb gross. You back under the trailer, hear the fifth-wheel jaws close, and see the release handle in the locked position.
539 words, about 3 min2The Right Turn That Pinched the Curb
During afternoon traffic in New Orleans, you drive a 53-foot trailer with a 79,000 lb load. You need to turn right from a three-lane one-way street onto a two-lane street.
516 words, about 3 min3Eight psi in One Minute
Before leaving a terminal near Lafayette, you perform the air-brake check on a tractor-semitrailer. With the engine running, you build pressure to 120 psi and shut off the engine.
529 words, about 3 min4Drive Axles Over on the Scale Ticket
At a Louisiana weigh station on I-10, your 5-axle tractor-semitrailer shows: steer axle 11,900 lb, drive tandem 34,650 lb, trailer tandem 32,900 lb, gross 79,450 lb. The cargo is 42,000 lb of bagged sand loaded by the shipper; the trailer tandems are at the middle of their slide range, and the fifth wheel is in its factory position.
526 words, about 3 min5The Off-Ramp That Looked Gentle
You drive a 53-foot van loaded with 44,000 lb of rolled paper. The rolls are stacked two high and blocked, but the load's center of gravity is high.
495 words, about 2 min