Which of the following is NOT a type of mobile equipment?

The correct answer is fixed conveyor because it is a stationary type of equipment used for moving materials along a predetermined path. Unlike mobile equipment, which is designed to be moved from one location to another for various tasks, a fixed conveyor remains in a singular position, facilitating the continuous transportation of materials within that confined area, typically in mining or manufacturing setups.

Rail-mounted equipment, cranes, and skid-mounted equipment all define types of mobile equipment, as they are designed to operate in various locations and can be relocated as needed. Rail-mounted equipment runs along tracks and can be moved to different parts of the mine, cranes can be transported and set up in different areas to lift heavy materials, and skid-mounted equipment is portable and can be easily relocated as required by the work site.