New Jersey Air Brakes Practice Test 2026 – The All-in-One Guide to Master Your Exam Success!

Question: 1 / 400

What can be a consequence of an improper alcohol level in an air brake system?

Brakes will become overly sensitive

Excessive wear on brake pads

Malfunctioning air brake valves

An improper alcohol level in an air brake system can lead to malfunctioning air brake valves. Air brake systems rely on a desiccant or alcohol to prevent moisture from accumulating in the air lines. When the alcohol level is insufficient, moisture can freeze in the valves or other components, particularly in cold weather. This freezing can cause the valves to stick or not operate properly, leading to a failure of the braking system to function as intended.

This malfunction can make it difficult to engage or release the brakes, impacting the vehicle’s stopping power and overall safety. Therefore, maintaining the proper alcohol level is crucial for the reliable operation of air brake valves and the entire braking system.

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Complete air pressure loss in the system

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