Practice question

Why check trailer lights and reflectors?

They control trailer brakes
Other drivers need to see trailer length, braking, turns, and clearance
They lock the kingpin
They replace mirrors

Answer: B — Other drivers need to see trailer length, braking, turns, and clearance

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

Practice more: LA CDL Combination Practice Questions - Louisiana CDL Combination Vehicles Test Exam →