Manitoba Airbrake Practice Exam 2025 – Your All-in-One Guide to Mastering the Airbrake Test!

Question: 1 / 400

What is the maximum air loss allowed when testing the air-loss rate of the brake system on a tractor and trailer?

4 psi

The maximum air loss allowed when testing the air-loss rate of the brake system on a tractor and trailer is 4 psi. This means that during the brake system test, the air pressure should not drop more than 4 pounds per square inch. Options B, C, and D are incorrect because they exceed the maximum air loss allowed, which could indicate potential issues with the brake system that need to be addressed.

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6 psi

8 psi

10 psi

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