arrow

2024 MO CDL Practice Test: Tank - Test 4

8. What keeps air in the truck brake system when the trailer develops a bad leak?
A
The hand safety valve.
B
The Johnson bar.
C
The tractor protection valve.
D
The trailer hand valve.
More
8/28
Progress
0
Errors
Restart
Next
Next
Tank - Test 4
  • Back to Test List
  • Tank - Test 3
  • Tank - Test 5
  • Challenge Library
    12