Washington CDL Practice Test

What is the proper sequence for uncoupling?

Release fifth wheel, lower landing gear, disconnect air, drive away Drive forward, then back up, then release the lock Disconnect air first, then back under to release Position trailer, apply trailer brakes, lower landing gear, disconnect lines, release fifth wheel lock, drive away

Correct Answer:

Position trailer, apply trailer brakes, lower landing gear, disconnect lines, release fifth wheel lock, drive away

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