Class 1 Practice

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#1. Which of the following is true about B-train couplings?

B-train coupling is safer than coupling to a tractor.

The second trailer connects directly to a converter dolly.

The second trailer connects directly to the lead trailer.

B-train couplings are illegal in Canada.

In a B train, the converter is part of the lead trailer. The fifth wheel assembly sits on the rear axle of the lead trailer. No converter dolly is required because the second unit connects directly to the extended frame of the lead unit.