185/470.
10.
Why do large vehicles use air brakes?
Other brake systems squeak too loudly.
Air braking systems are very effective.
Air brakes are complicated.
Air is free.
51 67913 CDL 184 B "" 0

Answer correctly : 0   |   Wrong : 0

Answer Sheet :

Refresh

Refresh this page and redo the question

Restart

Restart this set of tests