CDL Doubles and Triples Practice Test Results

Question 1
35% answer correctly
Which of the following statements about rearward amplification is not true?
The longer the trailers you`re pulling the larger the effect
The rearmost trailer is the most affected
The more trailers you`re pulling the larger the effect
Another name for rearward amplification is the crack-the-whip effect
Question 2
65% answer correctly
When making a lane change, check your mirrors:
When starting the lane change
After completing the lane change
All of these are correct
Before signaling the lane change
Question 3
79% answer correctly
When should you disconnect the steering axle brakes on the tractor?
When more than one of the trailers you`re pulling has brakes
When pulling more than two trailers
Never
When driving in snowy weather