CDL
Login
Home
CDL
Permit
Utah
Combination Vehicles #3
Practice Test
The tractor protection valve will shut off, and the emergency brakes on the trailer will activate if there's a big leak in the ________ brake line.
Cooling
Emergency
Fuel
Correct: 0
Incorrect: 0
Skipped: 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Restart The Test
Flashcards