Pennsylvania CDL Double/Triple Trailers Practice Test

What is a converter dolly used for in a doubles combination?

It converts a semitrailer into the rear trailer by providing an axle and fifth wheel connection It replaces the tractor's fifth wheel It holds only the electrical cable between trailers It removes the need for air brakes on the rear trailer

Correct Answer:

It converts a semitrailer into the rear trailer by providing an axle and fifth wheel connection

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