CDL Combination Vehicles Practice Test Results

Question 1
96% answer correctly
To reduce the risk of rollover when driving a combination vehicle:
Concentrate the cargo at the front and back of the rig
Keep the cargo as close to the ground as possible
Keep the cargo as far away from the ground as possible
Concentrate the cargo to one side of the rig
Question 2
91% answer correctly
As the driver of a combination vehicle what is one thing that you can do to prevent a rollover?
Keep both hands on the steering wheel
Slow down before entering a curve
Keep the air brakes properly pressurized
Make sure your load isn`t centered
Question 3
75% answer correctly
You`re hooking a tractor to a trailer. After connecting the air lines and before backing under the trailer you should:
Be sure not to activate air supply to the trailerarray(s) to prevent damage to the air delivery system
Activate air supply to the trailerarray(s) then lock the trailer brakes
Pull forward to test the strength of the air line connection
Activate air supply to the trailerarray(s) and leave the trailer brakes unlocked