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
Before signaling the lane change
All of these are correct
Question 3
79% answer correctly
When should you disconnect the steering axle brakes on the tractor?
Never
When pulling more than two trailers
When driving in snowy weather
When more than one of the trailers you`re pulling has brakes