Q. For process chart for changing oil in car, suppose you observed subsequent activities in a service station. Develop a process chart for changing oil in an automobile:

Operator first check which needed filter is in stock, then move to car, get into car, start engine, then idle car to warm engine. Drive car onto lift, stop engine, release hood, catch, get out of car, go to lift control, raise lift, go to toolbox, get wrench, get container for drained oil, get rag, walk under lift, wipe around oil drain plug, loosen oil drain plug, drain oil, wipe around oil drain plug, replace oil drain plug, tighten oil drain plug, remove container to disposal area. Move to lift control, lower lift wipe oil from wrench, move to toolbox, return wrench to tool chest, get oil filter wrench from tool chest.