InspectionCâu 33 / 60
Why should you check the air line connections between the tractor and trailer for leaks?
a.Because leaking air lines can cause loss of braking ability in the combination vehicle
b.Because leaks make the horn quieter
c.Because leaks change the tire pressure
d.Because leaks affect the paint
Giải thích
Air line leaks reduce the air pressure available for braking and can lead to brake failure. You should listen and feel for leaks at the glad hand connections and along the hoses during inspection. Any significant leak must be repaired before driving.
Luyện miễn phí toàn bộ 60 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- 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?
- What should you inspect on the trailer's tires and wheels during a pre-trip?
- When inspecting a combination vehicle, why must you check that the trailer is not overloaded or unbalanced?
- What should you look for when inspecting the sliding fifth wheel (if equipped)?
- During the walk-around inspection of a trailer, what should you check about the trailer lights and reflectors?
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Đội Ngũ Biên Tập PrepPass · Đối chiếu với CDL Combination Vehicles Knowledge Test · Quy trình kiểm tra