🛞Alabama Air Brakes — Question 9 of 10
To check the free play of manual slack adjusters of S-cam brakes, you should park on:
Answer: C
Level ground, chock the wheels and release the parking brakes.
Prior to manually checking the slack adjusters of the service brakes, ensure the vehicle is parked on a flat surface, wheel chocks have been placed, and the parking brakes are released.
Source: Alabama CDL Manual
All choices
- ALevel ground and apply the parking brakes, then apply service brakes.
- BLevel ground and drain off air pressure before checking the adjustment.
- CLevel ground, chock the wheels and release the parking brakes.
Alabama CDL Air Brakes Test Info
Questions on Exam
25
Passing Score
80%
Time Limit
Typically 30 minutes; varies by testing location
Age Requirements
Intrastate: 18+ · Interstate: 21+
Alabama Law Enforcement Agency (ALEA)
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More CDL Air Brakes Practice Questions
- A slack adjuster free play needs to be adjusted if it is more than about ____ when you pull hard on it.
- Stab braking:
- Which procedure is used in controlled braking?
- Which braking technique may be used to stop quickly when you do not have ABS?
- What is the purpose of the modulating control valve (when equipped)?