🛞Alaska Air Brakes — Question 4 of 10
The air brake lag distance at 55 mph on dry pavement adds about ____ feet.
Answer: A
32
Be aware of driving conditions and how they affect your ability to stop. Even under ideal driving conditions, air brake lag will result in an additional 32 feet of stopping distance when traveling 55 mph for a total of more than 450 feet. Allow for additional stopping distance when conditions are less than ideal.
Source: Alaska CDL Manual
All choices
- A32
- B52
- C12
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?