CDL Doubles and Triples Practice Test Results

Question 1
79% answer correctly
When should you disconnect the steering axle brakes on the tractor?
When pulling more than two trailers
When driving in snowy weather
When more than one of the trailers you`re pulling has brakes
Never
Question 2
44% answer correctly
What is a converter dolly used for?
To convert a fifth wheel into a dolly
To couple an axle and a fifth wheel
To convert an axle into an additional fifth wheel
To convert a fifth wheel into an additional axle
Question 3
71% answer correctly
Before you can supply the air tanks of a second trailer with air you need to:
Open 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
Close both shut off valves