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8. When driving above 40 mph, how should you adjust the following distance rule?
9. At what speed can hydroplaning begin to occur?
10. What is the maximum legal weight allowed on a single axle?
11. What is the maximum legal weight allowed on a tandem axle?
12. What is the maximum gross vehicle weight generally allowed on public roads?
13. Compared to a passenger car, how much more stopping distance does a loaded truck need?
14. A GVWR over 26,001 lbs requires what class of CDL?
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