CDL Combination Vehicles Practice Test Results

Question 1
91% answer correctly
As the driver of a combination vehicle what is one thing that you can do to prevent a rollover?
Make sure your load isn`t centered
Slow down before entering a curve
Keep the air brakes properly pressurized
Keep both hands on the steering wheel
Question 2
92% answer correctly
On a combination vehicle what color is the emergency air line?
Red
Yellow
Black
White
Question 3
81% answer correctly
What`s the purpose of the trailer air supply control?
Supplies air to the trailer
Supplies air to the cab
Engages the trailer air brakes
Prevents trailers from becoming decoupled