InspectionCâu 25 / 60
When inspecting the coupling system of a combination vehicle, what should you check about the fifth wheel mounting?
a.That mounting bolts and brackets are secure and none are missing or broken
b.That it is painted to match the cab
c.That the fifth wheel is completely dry
d.That it is tilted forward
Giải thích
During inspection you must check that the fifth wheel is securely mounted, with no missing or broken mounting bolts, brackets, or welds. A loose or cracked fifth wheel mount can fail under load. This is a critical part of the combination vehicle coupling inspection.
Luyện miễn phí toàn bộ 60 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- What are you checking for when you inspect the trailer air lines (glad hands) during a pre-trip?
- When inspecting the kingpin and fifth wheel coupling, what condition indicates a problem?
- During a combination vehicle inspection, what should you check about the landing gear?
- When inspecting the electrical connection between tractor and trailer, what should you verify?
- How can you test whether the trailer emergency brakes work during an inspection?
- When checking the trailer service brakes during a combination vehicle inspection, what should you do?
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Đội Ngũ Biên Tập PrepPass · Đối chiếu với CDL Combination Vehicles Knowledge Test · Quy trình kiểm tra