Texas CDL Air Brakes Practice Questions - Texas CDL Air Brakes Knowledge Test Exam

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Under Texas CMV Driver Handbook Section 5, what is the purpose of the anti-compounding (modulator) valve in a dual air brake system?

It increases compressor speed It prevents the service brakes and spring brakes from being applied at the same time, which could damage components or cause severe lockup It cools the brake chambers It bleeds the wet tank automatically

Correct Answer:

It prevents the service brakes and spring brakes from being applied at the same time, which could damage components or cause severe lockup

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