John and the factory workers had to unload the boxes then he was off to his next delivery. John calls a tow truck to take a van to the garage and keeps traveling until he gets tired and pulls to the side of the road to sleep in his cab. Children s Press, 1997. Trucks are motor vehicles that are seen on many different types of roads. Tractor-trailers carry heavy cargo and a metal plate connects the tractor to the trailer.
Platform trucks carry animals and produce.
Smaller trucks do not have a cab such as a panel truck. Fire trucks, tow trucks, and utility trucks are called emergency trucks. Flatbed trucks carry logs from trees. Refrigeration trucks which are cool in the inside carry food. Some construction trucks are so big that they can not use the roads.