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Doubles and Triples
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CDL Practice Test
General Knowledge
Air Brakes
Combination Vehicles
Doubles and Triples
Tanker Vehicles
Hazardous Materials
Transporting Passengers
CDL Doubles and Triples Practice Test
Question 1 of 3
You disconnect the dolly from the front trailer while it is still under the rear trailer. What will happen?
A
It will collapse
B
Nothing
C
The dolly tow bar will flip up
D
The trailers will decouple
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