Exam (elaborations)
CDL Class B - Doubles and Triples
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CDL Class B - Doubles and Triples
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CDL Class B - Doubles and TriplesTrue or false? Converter dollies built on or after March 1, 1998, are required to have antilock brakes. ✔ Ans - True
Converter dollies with antilock brakes will have a ______ stamp on the _______
side of the dolly. ✔ Ans - Yellow, left
When coupling a twin trailer, the first step is to: ✔ Ans - Secure the second (rear) trailer
When coupling twin trailers, the more heavily loaded semitrailer should be: ✔ Ans - In the first position behind the tractor
When connecting a converter dolly to the rear trailer, make sure that the trailer brakes are ___________ and/or the wheels are __________. ✔ Ans - Locked, chocked
When positioning the converter dolly in front of a second (rear) trailer, you can release the dolly brakes by opening the: ✔ Ans - Air tank petcock
When uncoupling twin trailers, the first thing you should do is: ✔ Ans - Uncouple the rear trailer
When uncoupling the rear trailer of twin trailers, you will need to chock the wheels of ______________ trailer if it doesn't have spring brakes. ✔ Ans - The second
True or false? When uncoupling the converter dolly of twin trailers, it is acceptable to unlock the pintle hook with the dolly under the rear trailer. ✔ Ans - False
When coupling triple trailers, start by coupling the _________ to the _____________. ✔ Ans - Tractor, first trailer.
When inspecting double and triple trailers, make sure that there is no visible space between the upper and lower ____________. ✔ Ans - Fifth wheel
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