Alberta Air Brake (Q) Knowledge Test Practice Questions - Alberta Air Brake (Q Endorsement) Knowledge Test Exam - Variant 2

What is brake lag in an air brake vehicle?

The time spent draining reservoirs before a trip The distance between dual tires The delay between pressing the brake pedal and the brakes beginning to work while air flows through the system The clearance between a fifth wheel and trailer apron

Correct Answer:

The delay between pressing the brake pedal and the brakes beginning to work while air flows through the system

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