4th Class Power Engineering 4A9 Practice Test Study Guide

What is the function of the low air pressure warning signal?

To warn the driver of brake fade To indicate the air pressure is too low for safe operation To indicate the ABS is not working To signal that the parking brakes are on

Correct Answer:

To indicate the air pressure is too low for safe operation

Explanation:

The low air pressure warning light/buzzer warns the driver when air pressure drops below a safe level (typically 60 psi).

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