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2024 LA CDL Practice Test: Double and Triples - Test 2

2. If you are coupling twin trailers, you should release the dolly brakes by ______.
A
None of the listed answers.
B
Opening the air tank petcock.
C
Using the dolly parking brake control.
D
Releasing the converter dolly fifth wheel latch.
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Double and Triples - Test 2
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