Practice question

What locking mechanism on the tractor's fifth wheel secures the semi-trailer's kingpin?

The mounting bracket pins
The slide rails
The locking jaws
The landing gear legs

Answer: C — The locking jaws

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

Practice more: TESDA Driving NC III Practice Questions - Driving (Articulated Vehicle Heavy Truck) NC III (TESDA Philippines) Exam →