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!

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What is the reason total stopping distance for air brakes is longer than that for hydraulic brakes?

Increased vehicle weight
Brake lag distance
Type of braking system
Brake fluid quality

The correct answer is: Brake lag distance

The total stopping distance for air brakes is indeed longer than for hydraulic brakes primarily due to brake lag distance. In an air brake system, there is a significant delay between the moment the driver applies the brakes and when the brakes actually engage. This delay is caused by the time it takes for the air pressure to build up within the system and travel through the brake lines to the brake chambers. This lag time can be influenced by several factors, including the length of the air lines and the speed at which the air pressure can react. Consequently, this added distance that the vehicle continues to travel during this delay effectively increases the total stopping distance. Understanding this delay is crucial for safe driving, particularly for larger vehicles that are equipped with air brakes, as it emphasizes the importance of maintaining a safe following distance and anticipating stopping needs well in advance.