Q
38. The proper method of braking when going down a long and/or steep grades after selecting the proper gear, is to brake until your speed is about _ miles per hour below your 'safe' speed, then release your brakes.
Air Brakesmedium
A5
B10
C15
Detailed Explanation
The correct answer is "5". This is based on federal CDL regulations and safety standards.
Correct Answer: 5
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
82. The parking or emergency brakes of trucks or buses can legally be held on by _ pressure.
air-brakesmedium
73. To test the air service brakes you should:
air-brakesmedium
47. When you apply your brakes, the air brake system works with an electric switch, by air pressure, to turn on the brake lights.
air-brakesmedium
25. The brake system that applies and releases the brakes when the driver uses the brake pedal is the______ brake system.
air-brakesmedium
42. It is possible to have an air leak in one system which will not affect the other.
air-brakesmedium