CDL Doubles and Triples Practice Test Results

Question 1
44% answer correctly
What is a converter dolly used for?
To couple an axle and a fifth wheel
To convert an axle into an additional fifth wheel
To convert a fifth wheel into a dolly
To convert a fifth wheel into an additional axle
Question 2
74% answer correctly
What is required before you supply air to the air tanks of the second trailer?
Open the shut off valves of the second trailer and close the shut off valves of the first trailer
Open the shut off valves of the first trailer and close the shut off valves of the second trailer
Close the shut off valves of both trailers
Open the shut off valves of both trailers
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 fifth wheel is touching the trailer
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