Q
74. The driver must be able to see a low pressure warning which comes on before pressure in the service air tank falls below:
Air Brakesmedium
A60 psi
B80 psi
C100 psi
Detailed Explanation
The correct answer is "60 psi". This is based on federal CDL regulations and safety standards.
Correct Answer: 60 psi
Ready to practice for real?
Take our free, full-length Air Brakes practice test. Simulates the actual DMV exam with timed questions.
Start Practice TestRelated Questions
42. It is possible to have an air leak in one system which will not affect the other.
air-brakesmedium
20. The braking power of the spring brakes:
air-brakesmedium
8. The application pressure gauge shows how much pressure you have:
air-brakesmedium
If braking at a speed of 55 mph while driving on dry pavement, the brake lag can add ____ to your vehicle's total stopping distance.
air-brakesmedium
Friction inside a brake drum is caused when the brake shoes and linings:
air-brakesmedium