CDL - Combination Vehicle Practice Test Latest 2022 Already Passed

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A tractor with a(n) ________ trailer requires the shortest amount of stopping distance . 1. empty 2. fully loaded 3. lightly loaded Correct Answer-fully loaded The air leakage rate for a combinati... on vehicle ( engine off, brakes on) should not be more than _____ psi per minute . 1. 4 2. 6 3. 2 Correct Answer-4 If you do not do the final air brake check for air leaks and fix them before driving, 1. you could lose your brakes while driving 2. your fuel usage will increase 3. tire pressure will drop Correct Answer-you could lose your brakes while driving Which part of the kingpin should the locking jaws close around? Correct Answer-The shank Glad hands are used to connect the .... 1. kingpin from the trailer to the locking jaws of the fifth wheel 2. electrical lines from the tractor to the trailer 3. service and emergency air lines from the truck or tractor to the trailer Correct Answer-service and emergency air lines from the truck or tractor to the traile [Show More]

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