2024 IA CDL Practice Test: Double and Triples - Test 2
Based on
2024 IA CDL Handbook
2. If you are coupling twin trailers, you should release the dolly brakes by ______.
A
Opening the air tank petcock.
B
None of the listed answers.
C
Releasing the converter dolly fifth wheel latch.
D
Using the dolly parking brake control.