Question 11 - Combination Vehicles Test Practice Test for the CDL

What are the other names for the service line?

control line and air supply line
air pressure line and signal line
signal line and emergency line
control line and signal line

Previous Question

Create a totally FREE account to save your progress and scores.

Sign up with email

Study without ads

We don’t like ads either. Show your support and remove all the distracting ads.

Upgrade to Premium