Q$\mathrm{.}3.$ A recirculating conveyor has a total length of $700$ ft and a speed of $90$ ft$/$min$.$ Spacing of part carriers $=14$ ft$.$ Each carrier can hold one part. Automatic machines load and unload the conveyor at the load and unload stations. Time to load a part is $0\mathrm{.}10$ min and unload time is the same. To satisfy production requirements, the loading and unloading rates are each $2\mathrm{.}0$ parts per min. Evaluate the conveyor system design with respect to the three principles developed by Kwo.