New York CDL Double/Triple Trailers Practice Test

A driver is reviewing dolly drain valve. Which answer matches official New York DMV or FMCSA guidance?

the dolly drain valve should be open for travel the dolly drain valve should be removed the converter dolly air tank drain valve should be closed the dolly drain valve should be tied to a safety chain

Correct Answer:

the converter dolly air tank drain valve should be closed

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