CDL
Login
Home
CDL
Permit
Idaho
Air Brakes #4
Practice Test
What is the purpose of the S-cam?
Rotates the wheels at different speeds for better handling.
Adjusts the tire pressure for optimal braking.
Forces the brake shoes against the inside of the brake drum.
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