2026 Utah Air Brakes CDL Practice Test 3

After the initial drop, the maximum acceptable leakage rates per minute are

5 psi for single vehicles and 6 psi for combination vehicles. 5 psi for single vehicles and 10 psi for combination vehicles. 3 psi for single vehicles and 4 psi for combination vehicles. 1 psi for single vehicles and 3 psi for combination vehicles.

Correct Answer:

3 psi for single vehicles and 4 psi for combination vehicles.

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