Vehicle InspectionCâu 15 / 120
During the static leak test you find air pressure dropping steadily and you can hear a hiss near the trailer air lines. What should you do?
a.Drive slowly to the delivery point and report it there
b.Add air with a shop line before each leg of the trip
c.Take the vehicle out of service until the leak is repaired
d.Apply the trailer hand valve to seal the leak
Giải thích
An audible, ongoing air leak means the system may not hold enough pressure to operate the brakes, so the vehicle must not be driven until it is repaired. Driving to a delivery point, topping off pressure, or applying a hand valve masks the problem without fixing the loss of braking capability.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
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