Q
Applying the brake pedal causes air pressure to activate an electric switch and:
Air Brakesmedium
AStart the engine
BTurn on the brake lights
CEngage the ABS
Detailed Explanation
The correct answer is "Turn on the brake lights". This is based on federal CDL regulations and safety standards.
Correct Answer: Turn on the brake lights
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
The ____ tells a driver how much pressure is in the air tanks.
air-brakesmedium
17. Excessive use of the service brakes results in overheating, which can lead to:
air-brakesmedium
29. The S-cam:
air-brakesmedium
1. Oil and water usually collect in compressed air tanks. If you do not have an automatic tank drain, when should you drain the air tanks?
air-brakesmedium
21. The air brake lag distance at 55 mph on dry pavement adds about feet.
air-brakesmedium