New Jersey Air Brakes Practice Test 2025 – The All-in-One Guide to Master Your Exam Success!

Question: 1 / 400

What does the stop light switch do?

Activates the hazard lights

Turns on the brake lights when you put on the air brakes

The stop light switch plays a critical role in vehicle safety and operation by turning on the brake lights when the air brakes are applied. This function is essential because the brake lights serve as a visual signal to other drivers on the road, indicating that the vehicle is slowing down or stopping. When air brakes are engaged, the stop light switch detects this action and activates the brake lights, ensuring that anyone behind the vehicle is adequately alerted to the change in speed.

This is particularly important in heavy vehicles that utilize air brakes, as these systems can take longer to react compared to traditional hydraulic brakes. By illuminating the brake lights promptly, the stop light switch enhances reaction time for following vehicles, thereby helping to prevent potential rear-end collisions and contributing to overall road safety.

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Controls the speed of the vehicle

Reports brake issues to the driver

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