You're driving bobtail and the glad hands are hanging loose. What should you do with them?
Right! Dummy couplers keep water and dirt out of unused lines; lock the glad hands together if you can. 📖 p. 6-6
Who takes it: Class A.
Tractor-trailers and trucks pulling a heavy trailer. 20 questions, 16 right to pass (80%).
You're driving bobtail and the glad hands are hanging loose. What should you do with them?
Right! Dummy couplers keep water and dirt out of unused lines; lock the glad hands together if you can. 📖 p. 6-6
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Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DMV