Ace Your DMV Written Test with our Guaranteed Cheat Sheet.
Cheat sheet
Question
What is another name for the service line?
Answers
A.  The control line
B.  The utility line
C.  The open line
D.  The parallel line
Explanation
The trailer service air line may also be referred to as the control line or signal line.
Answer Statistics
27.8 % of our users get this question wrong.
This questions is considered quite Hard

Pass your DMV Written Test with flying colors

Ace Your DMV Written Test
Get your Cheat Sheet Now!