CDL · Doubles and triples

Your set of twins includes a loaded rear trailer that you are about to unhook. How low should its landing gear go?

Correct answer: Enough to relieve the dolly of part of the trailer's weight.

Answer options

  1. AUntil the trailer is lifted completely clear of the dolly.
  2. BEnough to relieve the dolly of part of the trailer's weight. Correct
  3. CNot at all; leave it raised until the dolly has been pulled out.

Why

Lowering the gear far enough to take some of the load off the dolly keeps the trailer supported while making the dolly easier to release and roll out. The gear should never stay up, and there is no need to jack the trailer entirely off the dolly.

About this question

Topic: Doubles and triples   License: CDL

Part of these practice sets:

Where it applies: Asked in every state.

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This question is part of Coupling Doubles and Converter Dollies (28 questions). Take the full set and check your score.

Practice Coupling Doubles and Converter Dollies

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