Dump trucks are used to transport loose materials like sand, dirt, and gravel for construction projects. They have several key components, including a dump box, wheels, a cab, and an engine compartment. Dump trucks are typically made of steel and come in various colors. They are around 2300 mm tall, 1900 mm wide, and 5050 mm long. The engine is located at the front, followed by the cab and canopy, with the dump box and bed at the rear above four wheels. Parts are connected by axles and other linkages.