Free CDL Exam Air Brakes Endorsement Practice Test Questions

Question # 54

Which valve prevents the loss of all air from the tractor if the trailer breaks away?

Options:

Quick release valve

Tractor protection valve

Safety valve

Hand valve

Viewing question 54 out of 72 questions

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CDL Exam Air Brakes Endorsement Overview

Name	Air Brakes Knowledge Test
Code	CDL Exam Air Brakes Endorsement
Vendor	Career
Certification	Federal Motor Carrier Safety Administration

CDL Exam Air Brakes Endorsement Questions

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