Driving SafelyCâu 54 / 60
When driving a combination vehicle on a curved highway exit ramp, what should you do?
a.Maintain highway speed to keep momentum
b.Slow down before the ramp to a speed well below the posted ramp limit, because the limit may be too fast for a loaded truck
c.Brake hard in the middle of the curve
d.Coast in neutral through the curve
Giải thích
You should slow down before entering a curved ramp, often to a speed below the posted advisory limit, because those limits are set for cars, not heavy trucks. Braking in the curve can cause a skid or rollover. Reducing speed before the curve lets you drive through it under control.
Luyện miễn phí toàn bộ 60 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Why do combination vehicles need a longer following distance than smaller vehicles?
- At 50 mph in a 60-foot combination vehicle, about how many seconds of following distance should you keep?
- Why are combination vehicles more likely to roll over than they might appear?
- How does the trailer respond to steering inputs compared to the tractor, and why does this matter?
- What is the safest way to brake in a combination vehicle to avoid a skid?
- Why should you generally avoid using the trailer hand valve (trolley/spike valve) to control the vehicle in normal driving?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với CDL Combination Vehicles Knowledge Test · Quy trình kiểm tra