New Jersey Air Brakes Practice Test

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Prepare for the New Jersey Air Brakes Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What does the stop light switch do?

Activates the hazard lights
Turns on the brake lights when you put on the air brakes
Controls the speed of the vehicle
Reports brake issues to the driver

The correct answer is: 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.