Question 1355 · Traffic laws
What is the fifth wheel on a Semi-trailer?
- It is a popular expression meaning the steering wheel.
- A fixture, shaped like a wheel, designed to lift the driver’s compartment during engine treatment.
- A fixture (plate) that is designed to connect between the cab and the trailer.
- It is a spare wheel to replace flat (punctured) tires.
Correct answer: A fixture (plate) that is designed to connect between the cab and the trailer.
Appears in the exam for: Heavy truck (C)