Practice question

What is the first step in uncoupling the rear trailer of a set of doubles?

Disconnect the air lines immediately
Position the combination on level ground, apply the parking brakes, and lower the landing gear
Release the pintle hook immediately
Pull forward quickly to separate the trailers

Answer: B — Position the combination on level ground, apply the parking brakes, and lower the landing gear

The correct answer is shown above. Try the full quiz for additional practice.