🛞Arizona Air Brakes — Question 7 of 10
A slack adjuster free play needs to be adjusted if it is more than about ____ when you pull hard on it.
Answer: A
1 inch
S-cam brakes use slack adjusters to position the pushrod going to the cam. Make sure the parking brake is released and pull each slack adjuster hard while wearing gloves. If it moves more than an inch, the adjuster needs to be tightened.
Source: Arizona CDL Manual
All choices
- A1 inch
- B1/4 inch
- C1/2 inch
Arizona 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+
Arizona MVD
Official CDL PortalReady to pass your Arizona CDL Air Brakes exam?
Get full practice exams, study mode, and simulated tests with detailed explanations.
Risk-free — cancel anytime, no charge until trial ends.
Study this on the go
More CDL Air Brakes Practice Questions
- To check the free play of manual slack adjusters of S-cam brakes, you should park on:
- 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)?