Practice question

Under ALEA CDL Manual Section 5, what is the air brake lag distance, and why does it matter?

Distance traveled before air reaches the brake chambers and braking force builds — typically adds several feet at highway speeds
Distance between the tractor and trailer
Distance the parking brake travels
A type of brake lining

Answer: A — Distance traveled before air reaches the brake chambers and braking force builds — typically adds several feet at highway speeds

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