CDL Doubles and Triples Practice Test Results

Question 1
52% answer correctly
When might you consider disconnecting the steering axle brakes to help keep a tractor straight?
When driving on a grade
Never
Whenever necessary
When the road is slippery
Question 2
83% answer correctly
You disconnect the dolly from the front trailer while it is still under the rear trailer. What will happen?
The dolly tow bar will flip up
The trailers will decouple
Nothing
It will collapse
Question 3
92% answer correctly
You should allow __________ space between you and the vehicle in front of you when it`s raining
Less
The same amount of
Minimal
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