🛞Alaska Air Brakes — Question 9 of 10
The safety valve is set automatically when pressure is:
Answer: A
150
The primary air tank contains a safety relief valve to protect the air system from excessive pressure buildup. The safety relief valve typically activates at 150 psi.
Source: Alaska CDL Manual
All choices
- A150
- B100
- C50
Alaska 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+
Alaska Division of Motor Vehicles
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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?