Question 40 - Air Brakes Test Practice Test for the CDL

When performing an applied leakage test on a fully charged system, the air leakage rate should be no more than ____ psi per minute for a single vehicle, ____ psi per minute for a combination vehicle, or 6 psi per minute for a combination of three or more vehicles (doubles and triples).

Note: An applied leakage test is performed with the service brake pedal (foot brake) pressed firmly. A static leakage test is performed without stepping on the service brake pedal (foot brake).

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