BC Class 1 Practice Test · Question
Before coupling, the fifth wheel jaws must be:
Jaws open and the plate greased; trailer apron and kingpin clean before backing under.
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Question: Before coupling, the fifth wheel jaws must be:
Answer options: ✅ Open and properly lubricated
- Closed and locked
- Removed for inspection
- Filled with sand
Correct answer: Open and properly lubricated
Explanation: Jaws open and the plate greased; trailer apron and kingpin clean before backing under.
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