CDL
Login
Home
CDL
Permit
South Dakota
Air Brakes #4
Practice Test
When driving down a long and steep hill, using the brakes should only be an extra help to:
Use of spring brakes.
The use of the front brakes limiting valve.
The braking effect of the engine.
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
21
22
23
24
25
Restart The Test
Flashcards
