Free CDL Exam Air Brakes Endorsement Practice Test Questions

Question # 52

Which device keeps the tractor air system from losing air if the trailer breaks away?

Options:

Safety valve

Tractor protection valve

Quick release valve

Governor

Viewing question 52 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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