2024 HI CDL Practice Test: Class C - Test 5
Based on
2024 HI CDL Handbook
13. How do ABS work?
A
Sensors detect potential wheel lock up. An electronic control unit (ECU) will then decrease brake pressure to avoid wheel lockup.
B
None of the listed answers.
C
A sensor detects when oil and water is in the air storage tank and expels the oil and water automatically.
D
When you push in the ABS button, the ABS will override the brakes.