🛞Alabama Air Brakes — Question 8 of 10
The driver must be able to see a low air pressure warning which comes on before pressure in the service air tanks fall below ____ psi.
Answer: B
60
Regulations dictate that a visible low air pressure warning indicator be activated and placed in full view of the operator when the pressure in the air supply system falls lower than 75 to 55 psi.
Source: Alabama CDL Manual
All choices
- A80
- B60
- C40
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
- To check the free play of manual slack adjusters of S-cam brakes, you should park on:
- 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?