Maine CDL Practice Test: Double and Triples - Test 2 2026
Based on
2026 ME CDL Handbook
Instruction: To obtain this endorsement for pulling two or three trailers, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the ME CDL Handbook. The Double/Triple trailers endorsement can be used with the Class A CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Maine DMV locations.
2. If you are coupling twin trailers, you should release the dolly brakes by ______.
A
Releasing the converter dolly fifth wheel latch.
B
Opening the air tank petcock.
C
None of the listed answers.
D
Using the dolly parking brake control.