CDL Doubles and Triples Practice Test Results

Question 1
84% answer correctly
Driving a truck with double or triple trailers requires:
All of these are correct
More following distance than driving with a single trailer
More care when driving in bad weather and on grades
More skill than driving with a single trailer
Question 2
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 __________.
Closed, latched
Open, latched
Closed, free
Open, free
Question 3
71% answer correctly
Before you can supply the air tanks of a second trailer with air you need to:
Open the shut off valve at the rear of the first trailer and close the shut off valve at the rear of the second trailer
Open both shut off valves
Close both shut off valves
Close the shut off valve at the rear of the first trailer and open the shut off valve at the rear of the second trailer