During a combination vehicle inspection, what should you check regarding the kingpin and upper coupler plate?

Pick an answer

1. Only that the kingpin is a specific brand
2. That the kingpin is not bent or worn and the upper coupler plate is not cracked
3. That the coupler plate is loosely fitted for easier future uncoupling
4. Nothing specific, since the kingpin and coupler plate are checked only during annual inspections

Correct!

Not quite. The correct answer is highlighted.