InspectionCâu 27 / 60
When inspecting the kingpin and fifth wheel coupling, what condition indicates a problem?
a.A greased fifth wheel plate
b.Locking jaws closed around the kingpin shank
c.A visible gap between the upper and lower fifth wheel plates
d.The safety catch engaged over the release lever
Giải thích
A gap between the upper and lower fifth wheel plates indicates an improper coupling that could fail. There should be no space between the plates and the locking jaws should be closed around the shank. Finding a gap means you must recouple before driving.
Luyện miễn phí toàn bộ 60 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- When inspecting the coupling system of a combination vehicle, what should you check about the fifth wheel mounting?
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