Dr. Amit is online now. 1.Identify the four basic categories of hardware in a microcomputer system. 1. Hard disk, input/output, secondary storage, and display devices. 2. System unit, input/output, secondary storage, and primary storage. 3. System unit, input/output, secondary storage, and communication.
The semi-truck without the trailer weighs around 20,000 lbs. An empty trailer weighs around 12,000 lbs, but it depends on what type of trailer it is. There are hundreds of different configurations. The point is...the maximum legal weight that an 18-wheeler can weigh is 40 tons (80,000 lbs).
When operating a towed commercial vehicle, the gross weight of the vehicle includes the tractor, and trailer combination. However, in the case of of a Class A license, the trailer itself has to weight in excess of 10,000 lbs. In order to secure a Class A commercial driver, you will have to pass a set of written tests.