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The Occupational Health and Safety Administration, or OSHA, does not set definite speed limits for lift trucks. However, speed zones dictate that the average speed limit for lift trucks is 4 miles per hour.
They don't necessarily have to, although some states do have separate truck speed limits. In most cases, the company which owns the trucks has them limited to a certain speed.
That depends on which state and which type of road you had in mind. There'll be a major difference in speed limits between an Interstate Highway in Texas and an unmarked crown road in Delaware.
Most states don't have truck speed limits. So in a state like Colorado, New Mexico, Arizona, etc. (where the speed limit is 75), trucks can do the speed limit.
Speed limits in Britain are quoted in miles per hour and in Europe they are quoted in kilometres per hour.
Speed limits are based on the road, not the driver. Thus, unless another limit is specified, such as for trucks over a certain weight, the same speed limit applies to all drivers on that road.
Nothing...
difference between 3 and four speed is, a 3 speed has 3 forward gears. a 4 speed has 4 forward gears
Parts of the German Autobahn do not have posted speed limits.
5 speed is faster
Yes Germany does have speed limits but on a lot of motorways they dont :)