CDL Doubles and Triples Practice Test Results

Question 1
86% answer correctly
During your pre-trip inspection of your double rig you inspect the converter dolly. Its air tank drain valves should be __________ and the pintle hook should be __________.
Open, latched
Open, free
Closed, free
Closed, latched
Question 2
41% answer correctly
How can you check to make sure that trailer height is correct before coupling?
Raise the landing gear completely
All of these are correct
Use both side view mirrors
Use a landmark like a nearby tree
Question 3
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 first trailer and close the shut off valves 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 both trailers
Close the shut off valves of both trailers