sacatelcarnet
Getting your questions ready…
1/20
20:00
Mistakes 0/2
A trailer has safety chains forming a secondary coupling beside the main coupling. What do they do if the main coupling separates?
A
To prevent unauthorised use.
B
To earth the electrical system.
C
To prevent the coupling bar from touching the ground if it becomes detached, and to allow a certain degree of control over the trailer to be retained.
