Safe DrivingCâu 32 / 120
You are driving a 40-foot straight truck at 35 mph on a dry road. What is the minimum safe following distance?
a.2 seconds
b.3 seconds
c.6 seconds
d.4 seconds
Giải thích
Below 40 mph the rule is one second for every 10 feet of vehicle length, so a 40-foot vehicle needs 4 seconds. Two or three seconds is too little for that length, and 6 seconds would be the figure for a much longer vehicle or after adding time for higher speed.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Total stopping distance is made up of which three parts?
- You are traveling at 55 mph on dry pavement in a heavy vehicle. Roughly what total distance will you cover from the moment a hazard appears until you are stopped?
- If you double your speed from 20 mph to 40 mph, what happens to your braking distance?
- The same 40-foot vehicle is now traveling at 55 mph on dry pavement. What following distance should you keep?
- Rain has just begun after a long dry spell and the road surface is slick. How should you adjust your following distance and speed?
- You are approaching a curve posted at 40 mph while driving a loaded tractor-trailer. What is the safest approach?
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