New Jersey Air Brakes Practice Test

Draining oil and water from the bottom of compressed air storage tanks is critical for maintaining the integrity and performance of the air brake system. When moisture builds up in the air storage tanks, it can lead to corrosion, freezing during cold weather, and other issues that may impair the operation of the air brakes. The best practice is to drain the tanks at the end of each day of driving, as this ensures that any accumulated contaminants, such as oil and moisture, are removed on a regular basis. Since the air used in the braking system is often compressed and may contain water vapor from atmospheric conditions or moisture from the process itself, daily drainage prevents the buildup of these elements that could affect brake performance. Other options, such as draining weekly, only when refueling, or once a month, do not ensure that the tanks are kept free from contaminants as frequently as needed. The daily routine helps maintain optimal air brake system function, safety, and reliability.