CDL Combination Vehicles Practice Test Results

Question 1
87% answer correctly
You`re pulling triples and turn suddenly. Which trailer is most likely to turn over?
Middle
Rear
Front
All are equally likely to turn over
Question 2
86% answer correctly
Which of the following is a good reason to not use the trailer hand valve while driving?
It can cause you to come to a sudden stop
It can cause the trailer bakes to fail
It can make the trailer skid
It can cause the trailers to become decoupled
Question 3
89% answer correctly
When is the proper time to use the trailer handbrake to straighten out a trailer that`s jackknifing?
As soon as you start to jackknife
In the middle of the jackknife
Never
When you start to recover from the jackknife