Michigan CDL - Air Brakes Practice Exam

Question: 1 / 400

What would likely happen if air pressure in an air brake system drops significantly?

The vehicle would increase in speed

The air brakes would become ineffective

If the air pressure in an air brake system drops significantly, the brakes become ineffective. Air brakes rely on a certain level of compressed air to function properly. If the pressure falls below a certain threshold, the braking mechanism is unable to engage effectively, which could result in the inability to slow down or stop the vehicle safely.

This deterioration in braking performance is critical since air brake systems are designed to be fail-safe; they automatically apply the brakes if the pressure falls too low, which serves to prevent a total loss of braking capability in emergency situations. Understanding this mechanism emphasizes the importance of regular maintenance and monitoring of air pressure levels in vehicles equipped with air brakes.

Get further explanation with Examzify DeepDiveBeta

The hydraulic brakes would take over

The compressor would shut down

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy