🚛CDL Doubles/Triples — Question 11 of 20
To check if the converter dolly is securely coupled to the rear trailer you should:
Answer: B
Pull gently against the pin of the second trailer.
When checking that the converter dolly is securely coupled to the rear trailer during a walk around inspection of the coupling areas, gently pull against the pin of the second trailer to test it.
All choices
- ABackup slightly and make the visual check of the coupling.
- BPull gently against the pin of the second trailer.
- CRelease spring brakes and check the movement.
CDL Doubles/Triples Test Info
Questions on Exam
20
Passing Score
80%
Time Limit
Typically 30 minutes; varies by testing location
The Doubles/Triples test content is federally standardized, so this question applies in every state. Age limits, fees, and testing procedures do vary — check your state's CDL requirements.
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More CDL Doubles/Triples Practice Questions
- During inspection, the converter dolly air tanks drain valve should be _____ and the pintle hook should be _____.
- How are the spring brakes for a converter dolly released?
- You are doing a walk around inspection of a double or triple trailer rig. You should be sure the converter dolly air tank drain values are ____ and the pintle hook is ____.
- What is likely to happen if the pintle hook is unlocked with the dolly still under the second trailer?
- You should check trailer height before connecting a converted dolly to a second or third trailer. The trailer height is right when: