CDL Doubles and Triples Practice Test Results

Question 1
77% answer correctly
How should the shut off valves be set on a double trailer?
Rear of front trailer open, rear of back trailer open
Rear of front trailer open, rear of back trailer closed
Rear of front trailer closed, rear of back trailer closed
Rear of back trailer open, rear of front trailer closed
Question 2
90% answer correctly
You`re going down a long grade. What`s the best way to prevent your brakes from overheating?
Make sure you`re in the proper gear and use trailer brakes only
Make sure you`re in the proper gear, use engine braking and apply the brakes firmly when necessary
Use engine braking and ride the brakes down the grade
Supplement the air brakes by using the spring brakes
Question 3
77% answer correctly
When you`re connecting a converter dolly to a third trailer the trailer height is correct when which of the following is true?
The kingpin is lined up with the coupling assembly
The trailer will lower slightly when the dolly is under it
The trailer will raise slightly when the dolly is under it
The fifth wheel is touching the trailer