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Practice quizzes / OR CDL Combination Practice Questions - Oregon CDL Combination Vehicles Test Exam / Question 163217
Practice question

Oregon Section 6 says fifth-wheel locking jaws should be around the:

  1. Head of the kingpin
  2. Shank of the kingpin
  3. Landing-gear shaft
  4. Release handle spring

Answer: B — Shank of the kingpin

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

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