🚛CDL Doubles/Triples — Question 7 of 20
Which statement is true regarding the coupling of a triple?
Answer: A
The second and third trailers are coupled first.
The tractor is coupled to the first trailer and the second trailer is coupled to the third. The tractor-trailer is then coupled to the second and third trailers.
All choices
- AThe second and third trailers are coupled first.
- BThe first trailer is coupled to the second trailer first.
- CThe air supply and emergency lines are connected to all three trailers first.
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
- When driving a truck with more than one trailer, which trailer should be first behind the truck?
- When pulling multiple trailers, where should the heaviest trailer be located?
- To check if the converter dolly is securely coupled to the rear trailer you should:
- How many axles may be found on a converter dolly?
- During inspection, the converter dolly air tanks drain valve should be _____ and the pintle hook should be _____.