1. A unit load plays an important role in counting the materials flows and calculating their associated costs, which further help to determine a material handling system and a facilities layout. Then, what is a unit load? (10 pts) 2. A carton is the smallest container for transferring materials or goods. Its size needs to comply with standard industrial equipments, such as pallet-lifting trucks, highway freight trucks and railroad freight trailers, and plays an important role at selecting the right equipment. After you read the following two figures, please describe how the carton size design mpacts the efficiency of space utilization, the selection of materials handling equipment, and the choice of the storage racks and the warehouse area. (20 pts) -5 LD. 3. The following figure, in combination with the two figures above, illustrates roughly the design and layout of a materials handling system. Based on the unit loads' interactions with other components and for a given number of parts (for example, 500,000 parts) to be delivered, please describe how to determine (70 pts): Landing Number of layers per unit load Number of unit loads per stack Total number of unit loads required to handle the given number of parts d) Weight of each unit load e) Height of each unit load Total warehouse area required g) Warehouse cube utilization n ) Highway trailer utilization Number of truckloads required to deliver the given number of parts