CDL Doubles and Triples Practice Test Results

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