Practice question

In an Arizona CDL Combination Vehicles scenario, what should the driver do for trailer brake controls?

Use the foot brake for normal stops and use trailer-specific controls mainly for supply, testing, and emergency functions.
Drive with the red supply knob out
Use the trailer hand valve as the main solution
Skip the outside inspection

Answer: A — Use the foot brake for normal stops and use trailer-specific controls mainly for supply, testing, and emergency functions.

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