Washington CDL Practice Test

At highway speed, the minimum recommended following distance in a combination vehicle is:

Always 2 seconds, regardless of length 1 second per 10 feet of vehicle length under 40 mph; add 1 second over 40 mph Half a second per 10 feet 10 seconds for all speeds

Correct Answer:

1 second per 10 feet of vehicle length under 40 mph; add 1 second over 40 mph

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