505/510.
15.
How are dolly brakes released?
By opening the air tank petcock
By releasing the supply valve
By closing the supply valve
By turning off the retarder
44 58583 CDL 504 A "" 0

Answer correctly : 0   |   Wrong : 0

Answer Sheet :

Refresh

Refresh this page and redo the question

Restart

Restart this set of tests