Massachusetts CDL Practice Test: Double and Triples - Test 2 2023
Based on 2023 MA 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 MA 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 Massachusetts RMV locations.
2. If you are coupling twin trailers, you should release the dolly brakes by ______.
Opening the air tank petcock.
Using the dolly parking brake control.
Releasing the converter dolly fifth wheel latch.
None of the listed answers.