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?
Slow down before entering a curve
Keep both hands on the steering wheel
Keep the air brakes properly pressurized
Make sure your load isn`t centered
Question 2
92% answer correctly
On a combination vehicle what color is the emergency air line?
White
Yellow
Red
Black
Question 3
73% answer correctly
Why is it a good idea to lock the glad hands together when not pulling a trailer?
Saves wear on the dummy coupler
All of these are true
Keeps water and dirt out of the lines
Maintains air tank pressure by keeping air from escaping