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

What is one key safety advantage of a dual air brake system?

It eliminates the need for low-air warnings It removes all brake lag It can preserve one service brake circuit after a failure in the other circuit It makes reservoirs unnecessary

Correct Answer:

It can preserve one service brake circuit after a failure in the other circuit

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