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 shape and color of the parking brake control knob in most modern CMVs?

A red 8-sided (octagonal) knob A yellow diamond-shaped knob A green round knob A blue square knob

Correct Answer:

A yellow diamond-shaped knob

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